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In FW23, women's Proton and Atom lines have undergone a naming scheme change.
The suffix "LT" is removed and the suffix "AR" is changed to "Heavyweight". The change, however, is limited to the names only, with the products remaining identical.
Naming scheme of men's counterparts also remain the same.
The consensus when it comes to Proton vs Atom is that Proton LT is a little bit warmer than the Atom LT, owing to its loftier insulation (80 vs 60 gsm Coreloft). It's also a bit more durable and weather resistant. Atom LT, on the other hand, brings side fleece panels to the table, which makes it a little bit more breathable than the Proton LT in return.
Keep in mind that these products are much more similar than they're different. Don't be surprised if you don't recognize any of these differences in practice.
Links:
- https://arcteryx.com/us/en/shop/mens/proton-lt-hoody
- https://arcteryx.com/us/en/shop/mens/atom-lt-hoody
- https://arcteryx.com/us/en/shop/womens/proton-hoody
- https://arcteryx.com/us/en/shop/womens/atom-hoody
- Arc'teryx Jacket Finder: https://arcteryx.com/us/en/shop/jacket-finder/
Much lighter configurations of these jackets such as the Proton FL (Men's - Women's), Atom SL (Men's - Women's) and Proton Hybrid Hoody (Men's - Women's) and the heavier configuration Atom AR (Men's - Women's) have not been included in this article since they have different design intentions and best uses.
Raw Name | Arc'teryx Proton LT | Arc'teryx Atom LT |
---|---|---|
Name | Arc'teryx Proton LT (Men's - Women's) | Arc'teryx Atom LT (Men's - Women's) |
Image | ||
Temp (°F / °C) | 37/3 | 43/6 |
Breathability | 7/10 | 8/10 |
Weather Resistance | 7/10 | 6/10 |
Durability | 9/10 | 7/10 |
Packability | 5/10 | 5/10 |
Best pick for | High output activities. | |
Review | Review | Review |
Pit venting? | No | Yes, mesh |
Stuffs into itself? | No | No |
Two way zipper? | No | No |
Size Chart | [Men's / Women's] | [Men's / Women's] |
Type | Synthetic | Synthetic |
Fill Power | N/A | N/A |
Fill Weight (grams) | N/A | N/A |
FP x FW | N/A | N/A |
Synthetic Insulator (SI) | Coreloft Compact | Coreloft Continuous |
SI Amount | 80 g/m2 + 60 g/m2 | 60 g/m² |
Face Fabric | Fortius Air 20 | 20D Tyono |
Activity | Climbing | All Round |
Fit | Trim | Trim |
Weight | 375 g / 13.2 oz | 375 g / 13.2 oz |
Length (CB) | 75 cm / 29.4 in | 74 cm / 29.1 in |
arc-mens-url | https://www.arcteryx.com/us/en/shop/mens/proton-lt-hoody | https://www.arcteryx.com/us/en/shop/mens/atom-lt-hoody |
arc-womens-url | https://www.arcteryx.com/us/en/shop/womens/proton-hoody | https://www.arcteryx.com/us/en/shop/womens/atom-hoody |
pat-mens-url | ||
pat-womens-url | ||
rei-mens-url | https://www.rei.com/product/154873 | https://www.rei.com/product/175332 |
rei-womens-url | https://www.rei.com/product/152547 | https://www.rei.com/product/174720 |
backcountry-mens-url | ||
backcountry-womens-url | ||
amazon-mens-url | https://www.amazon.com/Arcteryx-Proton-Jacket-Glade-Large/dp/B08BJFXW1J | https://www.amazon.com/Arcteryx-24109-Atom-LT-Jacket/dp/B08BJHB631 |
amazon-womens-url | https://www.amazon.com/Arcteryx-Lightweight-Breathable-synthetically-Insulated/dp/B0973FDVWV | https://www.amazon.com/Arcteryx-24112-Atom-LT-Jacket/dp/B08BJFFFB4 |
image-url | https://images.arcteryx.com/F22/1350x1710/Proton-LT-Hoody-Distortion.jpg | https://images.arcteryx.com/F22/1350x1710/Atom-LT-Hoody-Forage.jpg |
If you're interested in reading more about them, too; click through:
- https://outdoorcrunch.com/arcteryx-proton-hybrid-hoody-review/
- https://outdoorcrunch.com/atom-ar-vs-atom-lt/
- https://outdoorcrunch.com/arcteryx-atom-lt-vs-sl/
- https://outdoorcrunch.com/atom-sl-vs-proton-fl/
Name | Est. Temp (F/C) | Review | Pit venting? | Stuffs into itself? | Two way zipper? | Type | Fill Power | Fill Weight (grams) | Fill Volume (FP x FW) | Synthetic Insulator (SI) | SI Amount | Face Fabric | Activity | Fit | Weight | Length (CB) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Arc'teryx Alpha (Men's - Women's) | -18/-28 | Review | No | Yes | Yes | Down | 850 | 296 | 251,600 | Coreloft | 90 g/m² | N30r 2L GoreTex Infinium | Climbing | Regular | 805 g / 1 lb 12.4 oz | 86 cm / 34 in |
Feathered Friends Khumbu | -17/-27 | No | Yes | No | Down | 900 | 378 | 340,200 | Primaloft Gold | 200 g | Pretex Shield XT | All Round | Regular | 960 g / 2 lb 2 oz | ? | |
Arc'teryx Ceres SV (Men's - Women's) | -15/-26 | Review | No | Yes | Yes | Down | 850 | 240 | 204,000 | Coreloft | ? | Arato 30 | All Round | Regular | 880 g / 1 lb 15 oz | 86 cm / 34 in |
Mountain Equipment K7 (Men's) | -13/-25 | No | Yes | Yes | Down | 800 | 300 | 240,000 | N/A | N/A | 30D Drilite | All Round | Regular | 820 g / 1 lb 13 oz | 76 cm / 30 in | |
Rab Positron Pro (Men's) | -13/-25 | No | Yes | Yes | Down | 800 | 300 | 240,000 | N/A | N/A | 40D Pertex Quantum Pro | All Round | Regular | 740 g / 1 lb 10 oz | 85 cm / 33.5 in | |
Arc'teryx Therme SV (Men's) | -11/-24 | Review | No | No | Yes | Parka | 750 | 211 | 158,250 | Coreloft | 60 g/m² | 2L Gore-Tex | Around Town | Regular | 1.072 kg / 2 lb 5.8 oz | 96 cm / 37.75 in |
Patagonia Grade VII (Men's) | -11/-24 | No | No | Yes | Down | 800 | 335 | 268,000 | N/A | N/A | 1.2 oz 15 & 20D Perfex Quantum | Around Town | Regular | 743 g / 1 lb 10.1 oz | 83 cm / 32.5 in | |
Arc'teryx Firebee AR (Men's - Women's) | -10/-23 | Review | No | Yes | Yes | Down | 800 | 225 | 180,000 | N/A | N/A | Arato 7 & 10 | All Round | Regular | 680 g / 1 lb 8 oz | 79 cm / 31 in |
Mountain Equipment Exo (Men's) | -10/-23 | No | Yes | Yes | Down | 800 | 265 | 212,000 | N/A | N/A | Nylon | All Round | Regular | 770 g / 1 lb 11.2 oz | 79 cm / 31 in | |
Arc'teryx Thorsen (Men's) | -7/-22 | Review | No | No | Yes | Parka | 750 | 192 | 144,000 | Coreloft | 60 g/m² | 90D 2L Gore-Tex | Around Town | Regular | 1.1 kg / 2 lb 5.4 oz | 91 cm / 36 in |
Patagonia Frozen Range (Men's - Women's) | -6/-21 | Review | No | No | No | Parka | 700 | 268 | 187,600 | N/A | N/A | 4 oz 75-denier polyester | Around Town | Regular | 1.253 kg / 2 lb 12.2 oz | 84 cm / 33 in |
Mountain Equipment Li. Ec. (Men's - Women's) | -5/-20 | No | No | Yes | Down | 700 | 295 | 206,500 | N/A | N/A | 50D Drilite | All Round | Regular | 822 g / 1 lb 13 oz | 72 cm / 28 in | |
Arc'teryx Patera Long (Women's) | -2/-19 | No | No | Yes | Parka | 750 | 74 | 55,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Regular | 1.1 kg / 2 lb 6.8 oz | 117.5 cm / 46.25 in | |
Rab Neutrino Pro (Men's - Women's) | -2/-19 | No | Yes | Yes | Down | 800 | 212 | 169,600 | N/A | N/A | 20D Pertex Quantum Pro | All Round | Regular | 585 g / 1 lb 8.6 oz | 77 cm / 30.3 in | |
Arc'teryx Dually Belay (Men's) | 0/-18 | Review | No | Yes | Yes | Synthetic | N/A | N/A | N/A | ThermaTek | 92 g/m² | 30D Nylon | Around Town | Regular | 705 g / 1 lb 9 oz | 84 cm / 33 in |
Arc'teryx Centrale (Women's) | 0/-18 | Review | No | No | Yes | Parka | 750 | 157 | 117,750 | Coreloft | 60 g/m² | N90p Nylon | Around Town | Regular | 885 g / 1 lb 15.2 oz | 95 cm / 37.5 in |
Arc'teryx Camosun (Men's) | 0/-18 | Review | No | No | No | Parka | 750 | 105 | 78,750 | Coreloft | 140 g/m² | N150p-X Gore-Tex | Around Town | Trim | 960 g / 2 lb 1.9 oz | 80 cm / 31.5 in |
Arc'teryx Cerium SV (Men's) | 0/-18 | Review | No | Yes | No | Down | 850 | 162 | 137,700 | Coreloft | 80 + 140 g/m² | Arato 7 & 10 | All Round | Regular | 415 g / 14.6 oz | 69.5 cm / 27.4 in |
Arc'teryx Revet (Men's) | 2/-17 | No | No | Yes | Parka | 750 | ? | N/A | N/A | 20d nylon/spandex double weave | Around Town | Regular | 755 g / 1 lb 10.6 oz | 91 cm / 36 in | ||
Arc'teryx Piedmont (Men's) | 3/-16 | No | Yes | Yes | Parka | 750 | 218 | 163,500 | N/A | N/A | Arato 10 | Around Town | Regular | 515 g / 1 lb 2.2 oz | 82 cm / 32.25 in | |
Arc'teryx Fission SV (Men's - Women's) | 3/-16 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 90 + 65 g/m² | N80p-X Gore-Tex 2L | All Round | Regular | 890 g / 1 lb 15.4 oz | 81 cm / 31.8 in |
Arc'teryx Alpha Lightweight (Men's) | 3/-16 | No | Yes | Yes | Down | 850 | 117 | 99,450 | Coreloft Compact | 40 g/m² | Hadron 2L Gore-Tex Infinium | Climbing | Regular | 540 g / 1 lb 3 oz | ? | |
Outdoor Research Sup. Alp. (Men's - Women's) | 3/-16 | No | No | Yes | Down | 800 | 182 | 145,600 | N/A | N/A | 30D Pertex Quantum Pro | All Round | Regular | 825 g / 1 lb 13.1 oz | 85 cm / 33.5 in | |
Arc'teryx Alessa Long (Women's) | 3/-16 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 + 120 g/m² | N90p 2L Gore-Tex | Around Town | Regular | 1.015 kg / 2 lb 3.8 oz | 123 cm / 48.5 in | |
Patagonia Tres 3-in-1 (Men's - Women's) | 3/-16 | Review | No | No | No | Parka | 700 | 118 | 82,600 | N/A | N/A | 5.5 oz polyester | Around Town | Regular | 1.307 kg / 2 lb 14.1 oz | 85 cm / 33.5 in |
Arc'teryx Radsten Parka (Men's) | 3/-16 | No | No | No | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Regular | 745 g / 1 lb 10.3 oz | 82 cm / 32.25 in | |
Rab Electron Pro (Men's - Women's) | 5/-15 | No | Yes | Yes | Down | 800 | 180 | 144,000 | N/A | N/A | 20D Pertex Quantum Pro | All Round | Regular | 525 g / 1 lb 2.5 oz | 74 cm / 29 in | |
Arc'teryx Therme Parka (Men's) | 5/-15 | Review | No | No | Yes | Parka | 750 | 120 | 90,000 | Coreloft | 60 + 80 g/m² | P75d Polyester | Around Town | Regular | 991 g / 2 lb 3 oz | 85 cm / 33.5 in |
Arc'teryx Macai (Men's) | 5/-15 | Review | Yes, zips | No | No | Down | 750 | 69 | 51,750 | Coreloft Compact | 60 + 100 g/m² | N40p-X 3L Gore-Tex | Ski/Snowboard | Regular | 1 kg / 2 lb 4 oz | 76 cm / 30 in |
Arc'teryx Nuclei SV (Men's) | 5/-15 | Review | No | Yes | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 180 g/m2 + 90 g/m2 | Arato 15 | Climbing | Regular | 600 g / 1 lb 5.2 oz | 81 cm / 31.8 in |
Patagonia DAS Parka (Men's) | 5/-15 | No | Yes | Yes | Parka | N/A | N/A | N/A | PrimaLoft Gold Insulation Eco | 133 + 40 g | Pertex Quantum Pro | Around Town | Regular | 555 g / 1lb 3.6 oz | 84 cm / 33 in | |
Arc'teryx Patera (Women's) | 5/-15 | Review | No | No | Yes | Parka | 750 | 58 | 43,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Trim | 867 g / 1 lb 14.6 oz | 93 cm / 37 in |
Black Diamond Access Down (Men's - Women's) | 7/-14 | No | Yes | Yes | Down | 700 | 155 | 108,500 | N/A | N/A | 30D ripstop nylon | All Round | Regular | 442 g / 15.6 oz | 76 cm / 29.75 in | |
Arc'teryx Kappa (Men's) | 7/-14 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 140 g/m² | N70p Gore Thermium | All Round | Regular | 755 g / 1 lb 10.6 oz | 80 cm / 31.5 in |
Arc'teryx Prema Down Coat (Women's) | 7/-14 | No | No | Yes | Parka | 750 | 92 | 69,000 | N/A | N/A | Nylon | Around Town | Regular | 794 g / 1 lb 12 oz | 117 cm / 46.1 in | |
Arc'teryx Radsten Insulated (Men's) | 7/-14 | No | No | No | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Regular | 715 g / 1 lb 9.2 oz | 73 cm / 28.75 in | |
Rab Microlight Alpine (Men's - Women's) | 7/-14 | No | Yes | No | Down | 700 | 153 | 107,100 | N/A | N/A | 30D Pertex Quantum | All Round | Regular | 466 g / 1 lb 0.5 oz | 72 cm / 28.5 in | |
Arc'teryx Thorium (Men's - Women's) | 7/-14 | Review | No | Yes | Yes | Down | 750 | 140 | 105,000 | Coreloft | 80 + 140 g/m² | Arato 30 | All Round | Regular | 517 g / 1 lb 2.2 oz | 71.5 cm / 28.1 in |
Feathered Friends Eos | 8/-13 | No | Yes | No | Down | 900 | 105 | 94,500 | N/A | N/A | Pertex Quantum | All Round | Regular | 306 g / 10.8 oz | ? | |
Arc'teryx Thorium AR (Men's - Women's) | 8/-13 | Review | No | Yes | No | Down | 750 | 130 | 97,500 | Coreloft | 80 + 140 g/m² | Arato 30 | All Round | Regular | 490 g / 1 lb 1.3 oz | 72 cm / 28.3 in |
Patagonia Macro Puff (Men's - Women's) | 8/-13 | Review | No | No | No | Synthetic | N/A | N/A | N/A | PlumaFill | 135 + 90 g | 10D Recycled nylon ripstop | All Round | Regular | 435 g / 15.3 oz | 79 cm / 31 in |
Arc'teryx Macai LT (Men's) | 8/-13 | Yes, zips | No | No | Down | 750 | 49 | 36,750 | Coreloft Compact | 60 g/m² | N40p-X 3L Gore-Tex | Ski/Snowboard | Regular | 855 g / 1 lb 14.2 oz | 74 cm / 29.1 in | |
Arc'teryx Seyla (Women's) | 8/-13 | No | No | Yes | Parka | 750 | 92 | 69,000 | N/A | N/A | Arato 10 | Around Town | Regular | 507 g / 1 lb. 1.9 oz. | 87 cm / 34.4 in | |
Patagonia Fitz Roy (Men's - Women's) | 8/-13 | No | Yes | No | Down | 800 | 128 | 102,400 | N/A | N/A | 20D Nylon | All Round | Regular | 632 g / 1lb 6.3 oz | 74 cm / 29 in | |
Arc'teryx Koda (Men's) | 8/-13 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 + 140 g/m² | N80p-X Gore-Tex | Around Town | Regular | 720 g / 1 lb 9.4 oz | 75 cm / 29.5 in | |
Patagonia Vosque 3-in-1 (Women's) | 10/-12 | Review | No | No | No | Parka | N/A | N/A | N/A | ThermoLite | 100 g | 65% nylon, 35% polyester | Around Town | Regular | 1.360 kg / 3 lb | 90 cm / 35.5 in |
Patagonia City Storm Down (Men's - Women's) | 12/-11 | No | Yes | No | Parka | 700 | 191 | 133,700 | N/A | N/A | 4.2 oz polyester | All Round | Regular | 468 g / 16.5 oz | 91 cm / 36 in | |
Patagonia Jackson Glacier (Men's - Women's) | 12/-11 | Review | No | No | Yes | Parka | 700 | 141 | 98,700 | N/A | N/A | 3.6 oz 50D polyester | Around Town | Regular | 880 g / 1 lb 15 oz | 79 cm / 31 in |
Arc'teryx Sensa (Women's) | 14/-10 | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Relaxed | 785 g / 1 lb 11.7 oz | 86 cm / 34 in | |
Patagonia Hi Loft Down (Men's - Women's) | 14/-10 | Review | No | Yes | No | Down | 600 | 177 | 106,200 | N/A | N/A | 1.4 oz 30D polyester | All Round | Regular | 540 g / 1 lb 3 oz | 76 cm / 30 in |
REI Magma 850 Hoodie 2.0 (Men's - Women's) | 14/-10 | No | Yes | No | Down | 850 | 120 | 102,000 | N/A | N/A | Pertex mini ripstop nylon | All Round | Regular | 340 g / 13.75 oz | 74 cm / 29.25 in | |
Arc'teryx Beta Insulated Coat (Women's) | 16/-9 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft | 80 g/m² + 120 g/m² | 2L 40D Gore-Tex | Around Town | Regular | 600 g / 1 lb 5.2 oz | ? |
Arc'teryx Atom AR (Men's - Women's) | 18/-8 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 120 g/m2 + 80 g/m2 + 60 g/m2 | 30D Tyono | All Round | Regular | 475 g / 1 lb | 74 cm / 29.1 in |
Patagonia Downdrift (Men's - Women's) | 18/-8 | No | No | No | Down | 600 | 279 | 167,400 | N/A | N/A | 4.2 oz polyester | Around Town | Regular | 1.014 kg / 2 lb 3.8 oz | ? | |
Arc'teryx Magnus (Men's) | 19/-7 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 g | N60p Gore-Tex 2L | Around Town | Regular | 690 g / 1 lb 8.3 oz | 83 cm / 32.5 in | |
Arc'teryx Agrium (Men's - Women's) | 21/-6 | No | Yes | No | Down | 850 | 117 | 99,450 | N/A | N/A | Arato | All Round | Regular | 365 g / 12.9 oz | 75 cm / 29.5 in | |
Patagonia AlpLight Down (Men's - Women's) | 21/-6 | No | Yes | No | Down | 800 | 100 | 80,000 | N/A | N/A | 0.8 oz 10D polyester | All Round | Slim | 270 g / 9.5 oz | 74 cm / 29 in | |
Arc'teryx Beta Insulated (Men's - Women's) | 21/-6 | Review | Yes, zips | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 80 g/m² | 2L 40D Gore-Tex | All Round | Regular | 680 g / 1 lb 8 oz | 78.5 cm / 31 in |
Patagonia Topley (Men's) | 23/-5 | No | No | Yes | Down | 700 | 172 | 120,400 | N/A | N/A | 6 oz polyester | All Round | Regular | 1.133 kg / 2 lb 8 oz | 77 cm / 30.5 in | |
Arc'teryx Alpha IS (Men's) | 23/-5 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 65 g/m² | N40p-X 2L Gore-Tex | Climbing | Regular | 610 g / 1 lb 5.5 oz | 78 cm / 30.75 in | |
Rab Xenon 2.0 (Men's - Women's) | 23/-5 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | PrimaLoft Silver | 60 g | 30D Pertex Quantum | All Round | Regular | 385 g / 13.6 oz | 71.5 cm / 28.1 in | |
Patagonia Down Sweater (Men's - Women's) | 23/-5 | Review | No | Yes | No | Down | 800 | 150 | 120,000 | N/A | N/A | 1.4 oz 20x30D polyester | All Round | Regular | 428 g / 15.1 oz | 67 cm / 26.25 in |
Arc'teryx Ralle Parka (Men's) | 25/-4 | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 g/m² | 2L 40D Gore-Tex | Around Town | Regular | 735 g / 1 lb 9.9 oz | ? | |
Patagonia Silent Down (Men's - Women's) | 26/-3 | Review | No | No | No | Down | 700 | 109 | 76,300 | N/A | N/A | 2.2 oz polyester | Around Town | Regular | 585 g / 1 lb 4.7 oz | 74 cm / 29 in |
Arc'teryx Therme Insulated (Men's) | 26/-3 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | 2L Gore-Tex | Around Town | Regular | 960 g / 2 lb 1.9 oz | 73 cm / 28.75 in |
Arc'teryx Cerium (Men's - Women's) | 26/-3 | No | Yes | No | Down | 850 | 113 | 96,050 | Coreloft | 80 + 100 g/m² | Arato 15 | All Round | Trim | 335 g / 11.8 oz | ? | |
Mountain Hardwear GW/2 (Men's - Women's) | 28/-2 | No | Yes | No | Down | 800 | 85 | 68,000 | N/A | N/A | 10D Ripstop Nylon | All Round | Trim | 250 g / 8.8 oz | 70 cm / 27.5 in | |
Arc'teryx Cerium LT (Men's - Women's) | 28/-2 | Review | No | Yes | No | Down | 850 | 102 | 86,700 | Coreloft | 80 + 100 g/m² | Arato 10 | All Round | Trim | 305 g / 10.8 oz | 72 cm / 28.3 in |
Arc'teryx Nuclei FL (Men's - Women's) | 32/0 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 65 g/m² | Arato 10r | Climbing | Trim | 325 g / 11.5 oz | 75 cm / 29.5 in |
Patagonia DAS Light (Men's - Women's) | 34/1 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | 0.8-oz 10-denier Pertex Quantum Pro | Climbing | Regular | 320 g / 11.3 oz | 77 cm / 30.5 in | |
Patagonia Micro Puff (Men's - Women's) | 36/2 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | Pertex Quantum | All Round | Trim | 298 g / 10.5 oz | 75 cm / 29.5 in |
Patagonia Isthmus (Men's) | 36/2 | No | No | No | Parka | N/A | N/A | N/A | ThermoGreen | 60 g | 4.2 oz polyester | Around Town | Regular | 895 g / 1 lb 15.6 oz | 70 cm / 27.5 in | |
Arc'teryx Proton LT (Men's - Women's) | 37/3 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 80 g/m2 + 60 g/m2 | Fortius Air 20 | Climbing | Trim | 375 g / 13.2 oz | 75 cm / 29.4 in |
Patagonia Nano Puff (Men's - Women's) | 37/3 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | PrimaLoft Gold Insulation Eco | 60 g | 22D Polyester | All Round | Regular | 363 g / 12.8 oz | 71.5 cm / 28 in |
Arc'teryx Norvan SL Ins. (Men's - Women's) | 39/4 | No | Yes | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | Gore-Tex ShakeDry | Running | Trim | 270 g / 9.5 oz | 71.5 cm / 28.1 in | |
Patagonia Nano Air (Men's - Women's) | 41/5 | Review | No | No | No | Synthetic | N/A | N/A | N/A | FullRange | 60 g | 33D Nylon ripstop | All Round | Trim | 318 g / 11.2 oz | ? |
Arc'teryx Atom LT (Men's - Women's) | 43/6 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 60 g/m² | 20D Tyono | All Round | Trim | 375 g / 13.2 oz | 74 cm / 29.1 in |
Arc'teryx Cerium SL (Men's - Women's) | 43/6 | Review | No | Yes | No | Down | 850 | 58 | 49,300 | Coreloft | 40 + 100 g/m² | Arato 7 | All Round | Trim | 215 g / 7.6 oz | 69 cm / 27.2 in |
Arc'teryx Proton Hybrid (Men's - Women's) | 46/8 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | Fortius™ Air 50 | All Round | Trim | 365 g / 12.9 oz | ? |
Arc'teryx Proton FL (Men's) | 48/9 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Octa Loft | 94 g/m² | Fortius Air 20 | Climbing | Trim | 323 g / 11.4 oz | 77 cm / 30.4 in |
Arc'teryx Atom SL (Men's - Women's) | 52/11 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | 20D Tyono | All Round | Trim | 245 g / 8.6 oz | 72 cm / 28.3 in |
REI Stormhenge Hybrid (Men's - Women's) | Testing | Yes, zips | No | No | Down | 850 | ? | N/A | N/A | 40D + 80D | All Round | Regular | 900 g / 1 lb 15.75 oz | 80 cm / 31.5 in | ||
Arc'teryx Monitor Insulated (Women's) | Testing | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 + 100 g/m² | 40D 3L Gore-Tex | Around Town | Oversized | 645 g / 1 lb 6.8 oz | 93 cm / 37 in | |
Arc'teryx Coelle (Women's) | Testing | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 + 140 g/m² | 40D 2L Gore-Tex | Around Town | Regular | 460 g / 1 lb 0.2 oz | 93 cm / 37 in |
View full table at https://outdoorcrunch.com/best-arcteryx-jacket/.
If you're confused now and don't know which jacket best corresponds to your own needs, then follow the advice given in https://arcteryx.com/us/en/shop/jacket-finder/.
The temperature ratings in this list are intended to represent the lowest temperatures you can wear each jacket without feeling uncomfortably cold.
Keep in mind that these are only approximate values, assuming:
- worn over a shirt only and no shell over,
- during daily use (strolls, power walks etc at most - no high output activities),
- with light wind,
- and when it's dry out.
These values applicable to your torso only. Your hands, legs and feet are still subject to their own additional insulation.
The best practice is usually to use this table for comparing each jacket to one another, rather than pinpointing their ratings.
Also, ratings will best respond to males. As most women tend to run colder than men, for women, shifting these ratings a bit is recommended.
Always opt for the warmer option when in doubt. For jackets with Atom AR level warmth and beyond, recommended is almost always the hooded models.
- Also see: Arc'teryx Shells
Name | Bottom line | Activity | Review | Breathability | Weather Res. | Durability | Packability | Temp (F/C) | Pit zips? | Two way zipper? | Stuffs into itself? | Hood? | Face Fabric | Fit | Weight | Length | Measurements |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alpha FL (Men's - Women's) | Climbing | 4/10 | 5/10 | 6/10 | 10/10 | N/A | No | No | Yes | StormHood | Hadron 3L Gore-Tex | Trim | 209 g / 7.4 oz | 76.5 cm / 30 in | [Men's / Women's] | ||
Alpha SL (Men's - Women's) | Climbing | 3/10 | 4/10 | 6/10 | 9/10 | N/A | No | No | Yes | StormHood | N40p 3L Gore-Tex | Trim | 326 g / 11.5 oz | 77.5 cm / 30.5 in | [Men's / Women's] | ||
Alpha AR (Men's - Women's) | Go-to climbing harshell. | Climbing | Review | 8/10 | 7/10 | 8/10 | 4/10 | N/A | Yes | No | No | StormHood | N40d & N80d Most Rugged 3L Gore-Tex Pro | Regular | 430 g / 15.2 oz | 79.5 cm / 31.25 in | [Men's] |
Alpha SV (Men's - Women's) | Strongest climbing hardshell. | Climbing | Review | 8/10 | 10/10 | 10/10 | 3/10 | N/A | Yes | No | No | StormHood | N100d Most Rugged 3L Gore-Tex Pro | Regular | 510 g / 1 lb 2 oz | 78 cm / 30.75 in | [Men's] |
Alpha IS (Men's) | Climbing | 7/10 | 5/10 | 5/10 | 8/10 | 23/-5 | No | Yes | Yes | StormHood | N40p-X 2L Gore-Tex | Regular | 610 g / 1 lb 5.5 oz | 78 cm / 30.75 in | |||
Beta (Men's - Women's) | All Round | 5/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | N30p-X 3L Gore-Tex | Fitted | 300 g / 10.6 oz | 76 cm / 30 in | |||
Beta Long (Men's) | All Round | Review | 5/10 | 8/10 | 8/10 | 3/10 | N/A | No | No | No | StormHood | N80p 3L Gore-Tex | Regular | 441 g / 15.6 oz | 85 cm / 33.5 in | ||
Beta Coat (Women's) | All Round | 7/10 | 5/10 | 4/10 | 5/10 | N/A | No | Yes | No | StormHood | 3L Gore-Tex | Regular | 320 g / 11.3 oz | ? | [Men's / Women's] | ||
Beta LT Hadron (Men's - Women's) | All Round | 5/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | Hadron 3L Gore-Tex | Fitted | 255g / 9 oz | 76 cm / 30 in | |||
Beta LT (Men's - Women's) | Beta AR alternative. | All Round | Review | 8/10 | 7/10 | 8/10 | 5/10 | N/A | Yes | No | No | StormHood | N40d 3L Gore-Tex | Fitted | 395 g / 13.9 oz | 76 cm / 30 in | |
Beta Insulated (Men's - Women's) | Best insulated shell. | All Round | 10/10 | 4/10 | 4/10 | 2/10 | 21/-6 | Yes | Yes | No | StormHood | N40d 2L Gore-Tex | Regular | 680 g / 1 lb 8 oz | 78.5 cm / 31 in | [Men's / Women's] | |
Beta Insulated Coat (Women's) | Beta Insulated alternative. | All Round | 7/10 | 4/10 | 4/10 | 2/10 | 16/-9 | No | Yes | No | StormHood | N40d 2L Gore-Tex | Regular | 600 g / 1 lb 5.2 oz | ? | [Men's / Women's] | |
Beta AR (Men's - Women's) | Go-to all-round harshell. | All Round | Review | 8/10 | 8/10 | 8/10 | 4/10 | N/A | Yes | No | No | DropHood | N40r-X & N80p-X Most Rugged 3L Gore-Tex Pro | Regular | 460 g / 1 lb | 76 cm / 30 in | |
Beta SV (Men's - Women's) | Strongest all-round harshell. | All Round | Review | 8/10 | 10/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80p-X Most Rugged 3L Gore-Tex Pro | Regular | 495 g / 1 lb 1.5 oz | 79 cm / 31 in | [Men's / Women's] |
Alpine Guide (Men's - Women's) | All Round | 8/10 | 10/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80d-X Most Rugged 3L Gore-Tex Pro | Regular | 480g / 1 lb 0.9 oz | ? | [Men's] | ||
Gamma SL (Men's - Women's) | A trimmer Gamma LT. | All Round | Review | 7/10 | 2/10 | 6/10 | 5/10 | N/A | No | No | No | StormHood | Fortius 1.0 | Trim | 310 g / 10.9 oz | 74 cm / 29.1 in | [Men's / Women's] |
Gamma LT (Men's) | A fleeceless, trimmer Gamma MX. | All Round | Review | 7/10 | 3/10 | 7/10 | 3/10 | N/A | No | No | No | StormHood | Wee Burly | Regular | 545 g / 1 lb 3.2 oz | 76 cm / 30 in | [Men's / Women's] |
Gamma MX (Men's - Women's) | A softshell with a fleece. | All Round | Review | 6/10 | 4/10 | 8/10 | 3/10 | N/A | No | No | No | StormHood | Fortius 2.0 | Regular | 555 g / 1 lb 3.6 oz | 74 cm / 29.1 in | [Men's / Women's] |
Rush (Men's - Women's) | Go-to ski jacket. | Skiing | Review | 8/10 | 9/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80p-X & N100p-X 3L Most Rugged Gore-Tex Pro | Regular | 590 g / 1 lb 4.8 oz | 79.5 cm / 31.25 in | [Men's] |
Sabre (Men's) | Alternative to Rush. | Skiing | 8/10 | 8/10 | 8/10 | 2/10 | N/A | Yes | No | No | StormHood | N80p-X 3L Gore-Tex | Regular | 705 g / 1 lb 8.9 oz | 79 cm / 31 in | ||
Sentinel (Women's) | Skiing | 8/10 | 8/10 | 8/10 | 2/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 370 g / 13.1 oz | ? | |||
Macai (Men's) | Go-to insulated ski jacket. | Skiing | Review | 10/10 | 8/10 | 9/10 | 1/10 | 5/-15 | Yes | No | No | DropHood | N40p-X 3L Gore-Tex | Regular | 1 kg / 2 lb 3.3 oz | 75 cm / 29.5 in | |
Macai LT (Men's) | A lighter Macai with StormHood. | Skiing | 8/10 | 7/10 | 8/10 | 1/10 | 8/-13 | Yes | No | No | StormHood | N40p-X 3L Gore-Tex | Regular | 855 g / 1 lb 14.2 oz | ? | [Men's] | |
Andessa (Women's) | Go-to insulated ski jacket. | Skiing | 10/10 | Testing | Testing | 1/10 | 8/-13 | Yes | No | No | DropHood | N40d 3L Gore-Tex | Trim | 869 g / 1 lb 14.7 oz | ? | ||
Andessa Shell (Women's) | Non-insulated Andessa. | Skiing | 5/10 | Testing | Testing | 3/10 | N/A | No | No | No | DropHood | N70p 3L Gore-Tex | Trim | 560 g / 1 lb 3.8 oz | ? | ||
Theriss Down (Women's) | Skiing | 8/10 | 6/10 | 7/10 | 2/10 | Testing | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | 709 g / 1 lb 9 oz | ? | |||
Rush IS (Women's) | An insulated Rush. | Skiing | 5/10 | Testing | Testing | 9/10 | 16/-9 | No | No | Yes | StormHood | Gore-Tex Infinium | Regular | 515 g / 1 lb 2.2 oz | ? | ||
Sentinel IS (Women's) | Skiing | Testing | Testing | Testing | Testing | 21/-6 | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | 600 g / 1 lb 5.2 oz | ? | [Women's] | ||
Ski Guide (Men's - Women's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | DropHood | N80d Most Rugged 3L Gore-Tex Pro | Regular | 570 g / 1 lb 4.1 oz | ? | |||
Micon Heather | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | NP100-d 3L Gore-Tex | Regular | 685 g / 1 lb 8.2 oz | 83 cm / 32.5 in | [Men's] | ||
Micon (Men's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 685 g / 1 lb 8.2 oz | 83 cm / 32.5 in | [Men's] | ||
Cassiar (Men's) | Skiing | Review | 8/10 | 7/10 | 8/10 | 3/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 820 g / 1 lb 12.9 oz | 74.5 cm / 29.3 in | [Women's] | |
Cassiar LT (Men's) | Skiing | Review | 6/10 | 6/10 | 6/10 | 5/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 605 g / 1 lb 5.3 oz | 75 cm / 29.5 in | [Women's] | |
Ravenna (Women's) | Skiing | Review | 8/10 | 7/10 | 8/10 | 3/10 | N/A | Yes | No | No | DropHood | N70s-4 3L Gore-Tex | Trim | 725 g / 1 lb 9.6 oz | 69.5 cm / 27.4 in | [Men's] | |
Ravenna LT (Women's) | Skiing | Review | 6/10 | 6/10 | 6/10 | 5/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 540 g / 1 lb 3 oz | 69 cm / 27.2 in | [Men's] | |
Procline (Men's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N70p Gore-Tex Infinium | Trim | 720 g / 1 lb 9.4 oz | 76 cm / 30 in | [Women's] | ||
Shashka Stretch (Women's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N70p Gore-Tex Infinium | Trim | 670 g / 1 lb 7.6 oz | 71 cm / 28 in | [Women's] | ||
Sabre AR (Men's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 7/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 700 g / 1 lb 8.7 oz | 79 cm / 31 in | [Men's] | |
Sentinel AR (Women's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 7/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 590 g / 1 lb 4.8 oz | 72.5 cm / 28.5 in | [Women's] | |
Sabre LT (Men's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 8/10 | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 660 g / 1 lb 7.3 oz | 83 cm / 32.5 in | ||
Sentinel LT (Women's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 8/10 | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 565 g / 1 lb 3.9 oz | 73.5 cm / 29 in | ||
Incendia (Women's) | Skiing | Review | 8/10 | 9/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | NP100d 3L Gore-Tex | Trim | 610 g / 1 lb 5.5 oz | 79 cm / 31 in | [Women's] | |
Indencia IS | Skiing | Testing | Testing | Testing | Testing | Testing | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | ? | 78 cm / 30.75 in | [Men's / Women's] | ||
Norvan LT (Men's - Women's) | Go-to running jacket. | Running | 5/10 | 5/10 | 8/10 | 6/10 | N/A | No | No | No | Standard | N13p 3L Gore-Tex | Fitted | 190 g / 6.7 oz | ? | [Women's] | |
Squamish (Men's - Women's) | Trimmer, lighter, packable running jacket. | Running | Review | 5/10 | 4/10 | 7/10 | 9/10 | N/A | No | No | Yes | StormHood | 30D Tyono | Trim | 140 g / 4.9 oz | 77.5 cm / 30.5 in | [Women's] |
Norvan SL Ins. (Women's) | Running | Testing | Testing | Testing | Testing | 39/4 | No | No | Yes | Standard | Gore-Tex ShakeDry | Trim | 270 g / 9.5 oz | 71.5 cm / 28.1 in | [Women's] | ||
Cita (Women's) | Running | Review | 7/10 | 4/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | Lumin | Trim | 120 g / 4.2 oz | 67.5 cm / 26.5 in | [Men's] | |
Cita SL (Women's) | Running | Review | 7/10 | 4/10 | 4/10 | 10/10 | N/A | Yes | No | Yes | Standard | Permeair 20 | Trim | 65 g / 2.3 oz | 61.5 cm / 24.2 in | [Men's] | |
Incendo (Men's) | Running | Review | 7/10 | 4/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | Lumin | Trim | 125 g / 4.4 oz | ? | ||
Incendo SL (Men's) | Running | Review | 7/10 | 4/10 | 4/10 | 10/10 | N/A | No | No | Yes | Standard | Permair 20 & Canim | Trim | 80 g / 2.8 oz | 73 cm / 28.75 in | [Men's / Women's] | |
Incendo Airshell | Running | Testing | Testing | Testing | Testing | N/A | No | No | Yes | Standard | ? | ? | ? | ? | [Men's] | ||
Norvan SL (Men's - Women's) | Running | Review | 7/10 | 6/10 | 8/10 | 8/10 | N/A | No | No | Yes | Standard | Gore-Tex Infinium | Trim | 120 g / 4.2 oz | 77 cm / 30.4 in | [Women's] | |
Trino SL (Men's) | Running | Review | 8/10 | 5/10 | 7/10 | 6/10 | N/A | No | No | No | Standard | Gore-Tex Infinium | Trim | 340 g / 12 oz | 74 cm / 29.1 in | [Men's / Women's] | |
Trino SL Anorak (Women's) | Running | Review | 8/10 | 7/10 | 8/10 | 7/10 | N/A | No | No | No | Standard | Gore-Tex Infinium | Trim | 290 g / 10.2 oz | 65 cm / 25.5 in | [Men's / Women's] | |
Nodin (Men's - Women's) | Running | 8/10 | 5/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | 20D Tyono | Trim | 155 g / 5.5 oz | 75 cm / 29.5 in | [Men's / Women's] | ||
Solano (Men's - Women's) | Around Town | Review | Testing | Testing | Testing | Testing | N/A | No | No | No | Standard | Gore-Tex Infinium | Relaxed | 355 g / 12.5 oz | 72 cm / 28.3 in | ||
Venda Anorak (Women's) | Around Town | Testing | Testing | Testing | Testing | N/A | No | No | No | Standard | Gore-Tex | Relaxed | 255 g / 9 oz | 75.5 cm / 29.7 in | |||
Zeta FL (Men's - Women's) | Hiking | 4/10 | 6/10 | 4/10 | 6/10 | N/A | No | No | No | StormHood | N20r 2L Gore-Tex | Trim | 221 g / 7.8 oz | 76 cm / 30 in | [Men's / Women's] | ||
Zeta SL (Men's - Women's) | Hiking | Review | 3/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | 2L Gore-Tex | Trim | 310 g / 10.9 oz | 77.8 cm / 30.6 in | [Men's] | |
Zeta LT (Men's - Women's) | Hiking | 5/10 | 7/10 | 8/10 | 5/10 | N/A | No | No | No | StormHood | N40P-X 3L Gore-Tex | Trim | 335 g / 11.8 oz | 78 cm / 30.75 in | [Men's] | ||
Zeta AR (Men's) | Hiking | 7/10 | 8/10 | 7/10 | 4/10 | N/A | Yes | No | No | StormHood | 3L Gore-Tex | Regular | 425 g / 15 oz | 80 cm / 31.5 in |
Best uses of Atom LT and Proton LT are the same: High output activities.
You can see this in Arc'teryx's Naming Scheme Page as well - for both "Atom" and "Proton".
I'd recommend you to base your decision when it comes to Proton LT vs Atom LT primarily on what you're planning to do with the jacket, your view when it comes to side fleece panels, and lastly, your taste when it comes to the looks.
Because of superior warmth and abrasion resistance capability of Proton LT, I think that it's mostly the better pick for climbing and skiing in not-so-cold-but-still-chilly days.
- 13 Mar 2023: I've been to Pfander and floodplain forests with my Nuclei SV
- 13 Dec 2022: Arc'teryx Alpha Parka Review: The most impressive jacket of all time
- 8 Dec 2022: Arc'teryx ReGEAR: OutdoorCrunch exclusive promo code!
- 7 Nov 2022: 2023 Thorium Hoody is in - as well as the new Thorium Parka (yes, parka)
- 2 Nov 2022: Beta Insulated Jacket: Pit zips AND two way zipper!
- 7 October 2022: Proton Hybrid Hoody is live! The ultimate do it all?
- 5 October 2022: DropHood vs StormHood: Pros/cons and best uses
- 5 September 2022: Reviewing Arc'teryx Fall Winter 22/23 Gear
- 5 August 2022: 5 things all Arc'teryx newbies should know
- #A sidenote here: Arc'teryx's PDF guide to jackets is GOOOLLLLDDDDD. Absolutely check that out too if you're interested in buying one.
Atom LT, on the other hand, is mostly the better choice if you run warm and would love side fleece panels for increased breathability.
Now let's get to the differences between this 2019 version Proton LT and Atom LT.
Warmth
Both Atom LT and Proton LT use Coreloft Compact. But Proton LT is equipped with 80 gsm of it in the body and 60 gsm in the hood, whereas the Atom LT is equipped with 60 gsm everywhere.
On top of that, side fleece panels of Atom LT make a great job in terms of increasing breathability, but in return, this also causes the heat to escape.
Proton LT also comes with slightly longer length, which makes a noticeable difference in warmth.
Weather resistance
The face fabric of Proton LT (Fortius Air 20) is more abrasion & weather resistant than that of Atom's (Tyono 20). The suffix number in the end represents the denier - a unit that is used to determine the thickness of fabric.
This makes them equals in the big picture, when you get to the nitty gritty, the Fortius Air consists of 16% elastane, whereas Atom LT is equipped with 6% of it.
I don't have any evidence to prove this, so this isn't scientific, but from what I can see, this more of this fiber tend to make the fabric membrane more durable to inclement weather and abrasion.
So, compared to Atom LT, having more resistant face fabrics, Proton LT is more suitable to be worn as a standalone piece (without any extra layers) while climbing, ski mountaineering, etc. It can hug a rock all day and capable of resisting foul weather more than the Atom LT.
Also, both jackets are DWR applied.
DWR is a coating.
It's basically sprayed on to the surface of these jackets as a finish. It stands for Durable Water Repellent - which means that water will be repelled under wet conditions instead of soaking into the fabric.
DWR also decreases dry time.
It's a good thing these jackets are coated in DWR, but pay attention to the fact that DWR is a coating - meaning that it will wear off over time.
Which is why you might want to invest in a DWR spray such as this one for after treatment.
As you see, there's a strong correlation between FP x FW and temperature ratings, but not more than, say, 80%. I explained why this happens here in this post of mine.
But using more of elastane doesn't only make the fabric more durable...
...it also makes it more breathable. At the same time.
Breathability
Sure, Proton LT's membrane is more breathable than the Atom LT's, but how does that play out in practice?
Well, even though technology has gone a long way in terms of engineering more breathable and durable fabric, more than half of all the breathability we get under a fabric still results from mechanical venting.
Think pit zips, two way front zippers or, in our case, side fleece panels. This makes Atom LT more breathable than the Proton LT.
Links:
- https://arcteryx.com/us/en/shop/mens/proton-lt-hoody
- https://arcteryx.com/us/en/shop/mens/atom-lt-hoody
- https://arcteryx.com/us/en/shop/womens/proton-hoody
- https://arcteryx.com/us/en/shop/womens/atom-hoody
- Arc'teryx Jacket Finder: https://arcteryx.com/us/en/shop/jacket-finder/
Packability
Neither of these jackets have a pocket that they can stuff into.
Layering
It's very popular to layer Atom LT and Proton LT with Beta LT, AR or SV.
Use this chart to compare Arc'teryx shells to one another.
Name | Bottom line | Activity | Review | Breathability | Weather Res. | Durability | Packability | Temp (F/C) | Pit zips? | Two way zipper? | Stuffs into itself? | Hood? | Face Fabric | Fit | Weight | Length | Measurements |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alpha FL (Men's - Women's) | Climbing | 4/10 | 5/10 | 6/10 | 10/10 | N/A | No | No | Yes | StormHood | Hadron 3L Gore-Tex | Trim | 209 g / 7.4 oz | 76.5 cm / 30 in | [Men's / Women's] | ||
Alpha SL (Men's - Women's) | Climbing | 3/10 | 4/10 | 6/10 | 9/10 | N/A | No | No | Yes | StormHood | N40p 3L Gore-Tex | Trim | 326 g / 11.5 oz | 77.5 cm / 30.5 in | [Men's / Women's] | ||
Alpha AR (Men's - Women's) | Go-to climbing harshell. | Climbing | Review | 8/10 | 7/10 | 8/10 | 4/10 | N/A | Yes | No | No | StormHood | N40d & N80d Most Rugged 3L Gore-Tex Pro | Regular | 430 g / 15.2 oz | 79.5 cm / 31.25 in | [Men's] |
Alpha SV (Men's - Women's) | Strongest climbing hardshell. | Climbing | Review | 8/10 | 10/10 | 10/10 | 3/10 | N/A | Yes | No | No | StormHood | N100d Most Rugged 3L Gore-Tex Pro | Regular | 510 g / 1 lb 2 oz | 78 cm / 30.75 in | [Men's] |
Alpha IS (Men's) | Climbing | 7/10 | 5/10 | 5/10 | 8/10 | 23/-5 | No | Yes | Yes | StormHood | N40p-X 2L Gore-Tex | Regular | 610 g / 1 lb 5.5 oz | 78 cm / 30.75 in | |||
Beta (Men's - Women's) | All Round | 5/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | N30p-X 3L Gore-Tex | Fitted | 300 g / 10.6 oz | 76 cm / 30 in | |||
Beta Long (Men's) | All Round | Review | 5/10 | 8/10 | 8/10 | 3/10 | N/A | No | No | No | StormHood | N80p 3L Gore-Tex | Regular | 441 g / 15.6 oz | 85 cm / 33.5 in | ||
Beta Coat (Women's) | All Round | 7/10 | 5/10 | 4/10 | 5/10 | N/A | No | Yes | No | StormHood | 3L Gore-Tex | Regular | 320 g / 11.3 oz | ? | [Men's / Women's] | ||
Beta LT Hadron (Men's - Women's) | All Round | 5/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | Hadron 3L Gore-Tex | Fitted | 255g / 9 oz | 76 cm / 30 in | |||
Beta LT (Men's - Women's) | Beta AR alternative. | All Round | Review | 8/10 | 7/10 | 8/10 | 5/10 | N/A | Yes | No | No | StormHood | N40d 3L Gore-Tex | Fitted | 395 g / 13.9 oz | 76 cm / 30 in | |
Beta Insulated (Men's - Women's) | Best insulated shell. | All Round | 10/10 | 4/10 | 4/10 | 2/10 | 21/-6 | Yes | Yes | No | StormHood | N40d 2L Gore-Tex | Regular | 680 g / 1 lb 8 oz | 78.5 cm / 31 in | [Men's / Women's] | |
Beta Insulated Coat (Women's) | Beta Insulated alternative. | All Round | 7/10 | 4/10 | 4/10 | 2/10 | 16/-9 | No | Yes | No | StormHood | N40d 2L Gore-Tex | Regular | 600 g / 1 lb 5.2 oz | ? | [Men's / Women's] | |
Beta AR (Men's - Women's) | Go-to all-round harshell. | All Round | Review | 8/10 | 8/10 | 8/10 | 4/10 | N/A | Yes | No | No | DropHood | N40r-X & N80p-X Most Rugged 3L Gore-Tex Pro | Regular | 460 g / 1 lb | 76 cm / 30 in | |
Beta SV (Men's - Women's) | Strongest all-round harshell. | All Round | Review | 8/10 | 10/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80p-X Most Rugged 3L Gore-Tex Pro | Regular | 495 g / 1 lb 1.5 oz | 79 cm / 31 in | [Men's / Women's] |
Alpine Guide (Men's - Women's) | All Round | 8/10 | 10/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80d-X Most Rugged 3L Gore-Tex Pro | Regular | 480g / 1 lb 0.9 oz | ? | [Men's] | ||
Gamma SL (Men's - Women's) | A trimmer Gamma LT. | All Round | Review | 7/10 | 2/10 | 6/10 | 5/10 | N/A | No | No | No | StormHood | Fortius 1.0 | Trim | 310 g / 10.9 oz | 74 cm / 29.1 in | [Men's / Women's] |
Gamma LT (Men's) | A fleeceless, trimmer Gamma MX. | All Round | Review | 7/10 | 3/10 | 7/10 | 3/10 | N/A | No | No | No | StormHood | Wee Burly | Regular | 545 g / 1 lb 3.2 oz | 76 cm / 30 in | [Men's / Women's] |
Gamma MX (Men's - Women's) | A softshell with a fleece. | All Round | Review | 6/10 | 4/10 | 8/10 | 3/10 | N/A | No | No | No | StormHood | Fortius 2.0 | Regular | 555 g / 1 lb 3.6 oz | 74 cm / 29.1 in | [Men's / Women's] |
Rush (Men's - Women's) | Go-to ski jacket. | Skiing | Review | 8/10 | 9/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | N80p-X & N100p-X 3L Most Rugged Gore-Tex Pro | Regular | 590 g / 1 lb 4.8 oz | 79.5 cm / 31.25 in | [Men's] |
Sabre (Men's) | Alternative to Rush. | Skiing | 8/10 | 8/10 | 8/10 | 2/10 | N/A | Yes | No | No | StormHood | N80p-X 3L Gore-Tex | Regular | 705 g / 1 lb 8.9 oz | 79 cm / 31 in | ||
Sentinel (Women's) | Skiing | 8/10 | 8/10 | 8/10 | 2/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 370 g / 13.1 oz | ? | |||
Macai (Men's) | Go-to insulated ski jacket. | Skiing | Review | 10/10 | 8/10 | 9/10 | 1/10 | 5/-15 | Yes | No | No | DropHood | N40p-X 3L Gore-Tex | Regular | 1 kg / 2 lb 3.3 oz | 75 cm / 29.5 in | |
Macai LT (Men's) | A lighter Macai with StormHood. | Skiing | 8/10 | 7/10 | 8/10 | 1/10 | 8/-13 | Yes | No | No | StormHood | N40p-X 3L Gore-Tex | Regular | 855 g / 1 lb 14.2 oz | ? | [Men's] | |
Andessa (Women's) | Go-to insulated ski jacket. | Skiing | 10/10 | Testing | Testing | 1/10 | 8/-13 | Yes | No | No | DropHood | N40d 3L Gore-Tex | Trim | 869 g / 1 lb 14.7 oz | ? | ||
Andessa Shell (Women's) | Non-insulated Andessa. | Skiing | 5/10 | Testing | Testing | 3/10 | N/A | No | No | No | DropHood | N70p 3L Gore-Tex | Trim | 560 g / 1 lb 3.8 oz | ? | ||
Theriss Down (Women's) | Skiing | 8/10 | 6/10 | 7/10 | 2/10 | Testing | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | 709 g / 1 lb 9 oz | ? | |||
Rush IS (Women's) | An insulated Rush. | Skiing | 5/10 | Testing | Testing | 9/10 | 16/-9 | No | No | Yes | StormHood | Gore-Tex Infinium | Regular | 515 g / 1 lb 2.2 oz | ? | ||
Sentinel IS (Women's) | Skiing | Testing | Testing | Testing | Testing | 21/-6 | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | 600 g / 1 lb 5.2 oz | ? | [Women's] | ||
Ski Guide (Men's - Women's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | DropHood | N80d Most Rugged 3L Gore-Tex Pro | Regular | 570 g / 1 lb 4.1 oz | ? | |||
Micon Heather | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | NP100-d 3L Gore-Tex | Regular | 685 g / 1 lb 8.2 oz | 83 cm / 32.5 in | [Men's] | ||
Micon (Men's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 685 g / 1 lb 8.2 oz | 83 cm / 32.5 in | [Men's] | ||
Cassiar (Men's) | Skiing | Review | 8/10 | 7/10 | 8/10 | 3/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 820 g / 1 lb 12.9 oz | 74.5 cm / 29.3 in | [Women's] | |
Cassiar LT (Men's) | Skiing | Review | 6/10 | 6/10 | 6/10 | 5/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 605 g / 1 lb 5.3 oz | 75 cm / 29.5 in | [Women's] | |
Ravenna (Women's) | Skiing | Review | 8/10 | 7/10 | 8/10 | 3/10 | N/A | Yes | No | No | DropHood | N70s-4 3L Gore-Tex | Trim | 725 g / 1 lb 9.6 oz | 69.5 cm / 27.4 in | [Men's] | |
Ravenna LT (Women's) | Skiing | Review | 6/10 | 6/10 | 6/10 | 5/10 | N/A | Yes | No | No | DropHood | N70p 3L Gore-Tex | Trim | 540 g / 1 lb 3 oz | 69 cm / 27.2 in | [Men's] | |
Procline (Men's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N70p Gore-Tex Infinium | Trim | 720 g / 1 lb 9.4 oz | 76 cm / 30 in | [Women's] | ||
Shashka Stretch (Women's) | Skiing | Testing | Testing | Testing | Testing | N/A | Yes | No | No | StormHood | N70p Gore-Tex Infinium | Trim | 670 g / 1 lb 7.6 oz | 71 cm / 28 in | [Women's] | ||
Sabre AR (Men's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 7/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 700 g / 1 lb 8.7 oz | 79 cm / 31 in | [Men's] | |
Sentinel AR (Women's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 7/10 | N/A | Yes | No | No | StormHood | N70p 3L Gore-Tex | Regular | 590 g / 1 lb 4.8 oz | 72.5 cm / 28.5 in | [Women's] | |
Sabre LT (Men's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 8/10 | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 660 g / 1 lb 7.3 oz | 83 cm / 32.5 in | ||
Sentinel LT (Women's) | Skiing | Review | 7/10 | 8/10 | 7/10 | 8/10 | N/A | Yes | No | No | StormHood | N80p 3L Gore-Tex | Regular | 565 g / 1 lb 3.9 oz | 73.5 cm / 29 in | ||
Incendia (Women's) | Skiing | Review | 8/10 | 9/10 | 9/10 | 3/10 | N/A | Yes | No | No | StormHood | NP100d 3L Gore-Tex | Trim | 610 g / 1 lb 5.5 oz | 79 cm / 31 in | [Women's] | |
Indencia IS | Skiing | Testing | Testing | Testing | Testing | Testing | Yes | No | No | StormHood | N80p 2L Gore-Tex | Regular | ? | 78 cm / 30.75 in | [Men's / Women's] | ||
Norvan LT (Men's - Women's) | Go-to running jacket. | Running | 5/10 | 5/10 | 8/10 | 6/10 | N/A | No | No | No | Standard | N13p 3L Gore-Tex | Fitted | 190 g / 6.7 oz | ? | [Women's] | |
Squamish (Men's - Women's) | Trimmer, lighter, packable running jacket. | Running | Review | 5/10 | 4/10 | 7/10 | 9/10 | N/A | No | No | Yes | StormHood | 30D Tyono | Trim | 140 g / 4.9 oz | 77.5 cm / 30.5 in | [Women's] |
Norvan SL Ins. (Women's) | Running | Testing | Testing | Testing | Testing | 39/4 | No | No | Yes | Standard | Gore-Tex ShakeDry | Trim | 270 g / 9.5 oz | 71.5 cm / 28.1 in | [Women's] | ||
Cita (Women's) | Running | Review | 7/10 | 4/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | Lumin | Trim | 120 g / 4.2 oz | 67.5 cm / 26.5 in | [Men's] | |
Cita SL (Women's) | Running | Review | 7/10 | 4/10 | 4/10 | 10/10 | N/A | Yes | No | Yes | Standard | Permeair 20 | Trim | 65 g / 2.3 oz | 61.5 cm / 24.2 in | [Men's] | |
Incendo (Men's) | Running | Review | 7/10 | 4/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | Lumin | Trim | 125 g / 4.4 oz | ? | ||
Incendo SL (Men's) | Running | Review | 7/10 | 4/10 | 4/10 | 10/10 | N/A | No | No | Yes | Standard | Permair 20 & Canim | Trim | 80 g / 2.8 oz | 73 cm / 28.75 in | [Men's / Women's] | |
Incendo Airshell | Running | Testing | Testing | Testing | Testing | N/A | No | No | Yes | Standard | ? | ? | ? | ? | [Men's] | ||
Norvan SL (Men's - Women's) | Running | Review | 7/10 | 6/10 | 8/10 | 8/10 | N/A | No | No | Yes | Standard | Gore-Tex Infinium | Trim | 120 g / 4.2 oz | 77 cm / 30.4 in | [Women's] | |
Trino SL (Men's) | Running | Review | 8/10 | 5/10 | 7/10 | 6/10 | N/A | No | No | No | Standard | Gore-Tex Infinium | Trim | 340 g / 12 oz | 74 cm / 29.1 in | [Men's / Women's] | |
Trino SL Anorak (Women's) | Running | Review | 8/10 | 7/10 | 8/10 | 7/10 | N/A | No | No | No | Standard | Gore-Tex Infinium | Trim | 290 g / 10.2 oz | 65 cm / 25.5 in | [Men's / Women's] | |
Nodin (Men's - Women's) | Running | 8/10 | 5/10 | 5/10 | 10/10 | N/A | No | No | Yes | Standard | 20D Tyono | Trim | 155 g / 5.5 oz | 75 cm / 29.5 in | [Men's / Women's] | ||
Solano (Men's - Women's) | Around Town | Review | Testing | Testing | Testing | Testing | N/A | No | No | No | Standard | Gore-Tex Infinium | Relaxed | 355 g / 12.5 oz | 72 cm / 28.3 in | ||
Venda Anorak (Women's) | Around Town | Testing | Testing | Testing | Testing | N/A | No | No | No | Standard | Gore-Tex | Relaxed | 255 g / 9 oz | 75.5 cm / 29.7 in | |||
Zeta FL (Men's - Women's) | Hiking | 4/10 | 6/10 | 4/10 | 6/10 | N/A | No | No | No | StormHood | N20r 2L Gore-Tex | Trim | 221 g / 7.8 oz | 76 cm / 30 in | [Men's / Women's] | ||
Zeta SL (Men's - Women's) | Hiking | Review | 3/10 | 5/10 | 4/10 | 5/10 | N/A | No | No | No | StormHood | 2L Gore-Tex | Trim | 310 g / 10.9 oz | 77.8 cm / 30.6 in | [Men's] | |
Zeta LT (Men's - Women's) | Hiking | 5/10 | 7/10 | 8/10 | 5/10 | N/A | No | No | No | StormHood | N40P-X 3L Gore-Tex | Trim | 335 g / 11.8 oz | 78 cm / 30.75 in | [Men's] | ||
Zeta AR (Men's) | Hiking | 7/10 | 8/10 | 7/10 | 4/10 | N/A | Yes | No | No | StormHood | 3L Gore-Tex | Regular | 425 g / 15 oz | 80 cm / 31.5 in |
More about this chart: https://outdoorcrunch.com/best-arcteryx-shells/
If you're confused now and don't know which jacket best corresponds to your own needs, then follow the advice given below:
Also see:
Name | Est. Temp (F/C) | Review | Pit venting? | Stuffs into itself? | Two way zipper? | Type | Fill Power | Fill Weight (grams) | Fill Volume (FP x FW) | Synthetic Insulator (SI) | SI Amount | Face Fabric | Activity | Fit | Weight | Length (CB) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Arc'teryx Alpha (Men's - Women's) | -18/-28 | Review | No | Yes | Yes | Down | 850 | 296 | 251,600 | Coreloft | 90 g/m² | N30r 2L GoreTex Infinium | Climbing | Regular | 805 g / 1 lb 12.4 oz | 86 cm / 34 in |
Feathered Friends Khumbu | -17/-27 | No | Yes | No | Down | 900 | 378 | 340,200 | Primaloft Gold | 200 g | Pretex Shield XT | All Round | Regular | 960 g / 2 lb 2 oz | ? | |
Arc'teryx Ceres SV (Men's - Women's) | -15/-26 | Review | No | Yes | Yes | Down | 850 | 240 | 204,000 | Coreloft | ? | Arato 30 | All Round | Regular | 880 g / 1 lb 15 oz | 86 cm / 34 in |
Mountain Equipment K7 (Men's) | -13/-25 | No | Yes | Yes | Down | 800 | 300 | 240,000 | N/A | N/A | 30D Drilite | All Round | Regular | 820 g / 1 lb 13 oz | 76 cm / 30 in | |
Rab Positron Pro (Men's) | -13/-25 | No | Yes | Yes | Down | 800 | 300 | 240,000 | N/A | N/A | 40D Pertex Quantum Pro | All Round | Regular | 740 g / 1 lb 10 oz | 85 cm / 33.5 in | |
Arc'teryx Therme SV (Men's) | -11/-24 | Review | No | No | Yes | Parka | 750 | 211 | 158,250 | Coreloft | 60 g/m² | 2L Gore-Tex | Around Town | Regular | 1.072 kg / 2 lb 5.8 oz | 96 cm / 37.75 in |
Patagonia Grade VII (Men's) | -11/-24 | No | No | Yes | Down | 800 | 335 | 268,000 | N/A | N/A | 1.2 oz 15 & 20D Perfex Quantum | Around Town | Regular | 743 g / 1 lb 10.1 oz | 83 cm / 32.5 in | |
Arc'teryx Firebee AR (Men's - Women's) | -10/-23 | Review | No | Yes | Yes | Down | 800 | 225 | 180,000 | N/A | N/A | Arato 7 & 10 | All Round | Regular | 680 g / 1 lb 8 oz | 79 cm / 31 in |
Mountain Equipment Exo (Men's) | -10/-23 | No | Yes | Yes | Down | 800 | 265 | 212,000 | N/A | N/A | Nylon | All Round | Regular | 770 g / 1 lb 11.2 oz | 79 cm / 31 in | |
Arc'teryx Thorsen (Men's) | -7/-22 | Review | No | No | Yes | Parka | 750 | 192 | 144,000 | Coreloft | 60 g/m² | 90D 2L Gore-Tex | Around Town | Regular | 1.1 kg / 2 lb 5.4 oz | 91 cm / 36 in |
Patagonia Frozen Range (Men's - Women's) | -6/-21 | Review | No | No | No | Parka | 700 | 268 | 187,600 | N/A | N/A | 4 oz 75-denier polyester | Around Town | Regular | 1.253 kg / 2 lb 12.2 oz | 84 cm / 33 in |
Mountain Equipment Li. Ec. (Men's - Women's) | -5/-20 | No | No | Yes | Down | 700 | 295 | 206,500 | N/A | N/A | 50D Drilite | All Round | Regular | 822 g / 1 lb 13 oz | 72 cm / 28 in | |
Arc'teryx Patera Long (Women's) | -2/-19 | No | No | Yes | Parka | 750 | 74 | 55,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Regular | 1.1 kg / 2 lb 6.8 oz | 117.5 cm / 46.25 in | |
Rab Neutrino Pro (Men's - Women's) | -2/-19 | No | Yes | Yes | Down | 800 | 212 | 169,600 | N/A | N/A | 20D Pertex Quantum Pro | All Round | Regular | 585 g / 1 lb 8.6 oz | 77 cm / 30.3 in | |
Arc'teryx Dually Belay (Men's) | 0/-18 | Review | No | Yes | Yes | Synthetic | N/A | N/A | N/A | ThermaTek | 92 g/m² | 30D Nylon | Around Town | Regular | 705 g / 1 lb 9 oz | 84 cm / 33 in |
Arc'teryx Centrale (Women's) | 0/-18 | Review | No | No | Yes | Parka | 750 | 157 | 117,750 | Coreloft | 60 g/m² | N90p Nylon | Around Town | Regular | 885 g / 1 lb 15.2 oz | 95 cm / 37.5 in |
Arc'teryx Camosun (Men's) | 0/-18 | Review | No | No | No | Parka | 750 | 105 | 78,750 | Coreloft | 140 g/m² | N150p-X Gore-Tex | Around Town | Trim | 960 g / 2 lb 1.9 oz | 80 cm / 31.5 in |
Arc'teryx Cerium SV (Men's) | 0/-18 | Review | No | Yes | No | Down | 850 | 162 | 137,700 | Coreloft | 80 + 140 g/m² | Arato 7 & 10 | All Round | Regular | 415 g / 14.6 oz | 69.5 cm / 27.4 in |
Arc'teryx Revet (Men's) | 2/-17 | No | No | Yes | Parka | 750 | ? | N/A | N/A | 20d nylon/spandex double weave | Around Town | Regular | 755 g / 1 lb 10.6 oz | 91 cm / 36 in | ||
Arc'teryx Piedmont (Men's) | 3/-16 | No | Yes | Yes | Parka | 750 | 218 | 163,500 | N/A | N/A | Arato 10 | Around Town | Regular | 515 g / 1 lb 2.2 oz | 82 cm / 32.25 in | |
Arc'teryx Fission SV (Men's - Women's) | 3/-16 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 90 + 65 g/m² | N80p-X Gore-Tex 2L | All Round | Regular | 890 g / 1 lb 15.4 oz | 81 cm / 31.8 in |
Arc'teryx Alpha Lightweight (Men's) | 3/-16 | No | Yes | Yes | Down | 850 | 117 | 99,450 | Coreloft Compact | 40 g/m² | Hadron 2L Gore-Tex Infinium | Climbing | Regular | 540 g / 1 lb 3 oz | ? | |
Outdoor Research Sup. Alp. (Men's - Women's) | 3/-16 | No | No | Yes | Down | 800 | 182 | 145,600 | N/A | N/A | 30D Pertex Quantum Pro | All Round | Regular | 825 g / 1 lb 13.1 oz | 85 cm / 33.5 in | |
Arc'teryx Alessa Long (Women's) | 3/-16 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 + 120 g/m² | N90p 2L Gore-Tex | Around Town | Regular | 1.015 kg / 2 lb 3.8 oz | 123 cm / 48.5 in | |
Patagonia Tres 3-in-1 (Men's - Women's) | 3/-16 | Review | No | No | No | Parka | 700 | 118 | 82,600 | N/A | N/A | 5.5 oz polyester | Around Town | Regular | 1.307 kg / 2 lb 14.1 oz | 85 cm / 33.5 in |
Arc'teryx Radsten Parka (Men's) | 3/-16 | No | No | No | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Regular | 745 g / 1 lb 10.3 oz | 82 cm / 32.25 in | |
Rab Electron Pro (Men's - Women's) | 5/-15 | No | Yes | Yes | Down | 800 | 180 | 144,000 | N/A | N/A | 20D Pertex Quantum Pro | All Round | Regular | 525 g / 1 lb 2.5 oz | 74 cm / 29 in | |
Arc'teryx Therme Parka (Men's) | 5/-15 | Review | No | No | Yes | Parka | 750 | 120 | 90,000 | Coreloft | 60 + 80 g/m² | P75d Polyester | Around Town | Regular | 991 g / 2 lb 3 oz | 85 cm / 33.5 in |
Arc'teryx Macai (Men's) | 5/-15 | Review | Yes, zips | No | No | Down | 750 | 69 | 51,750 | Coreloft Compact | 60 + 100 g/m² | N40p-X 3L Gore-Tex | Ski/Snowboard | Regular | 1 kg / 2 lb 4 oz | 76 cm / 30 in |
Arc'teryx Nuclei SV (Men's) | 5/-15 | Review | No | Yes | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 180 g/m2 + 90 g/m2 | Arato 15 | Climbing | Regular | 600 g / 1 lb 5.2 oz | 81 cm / 31.8 in |
Patagonia DAS Parka (Men's) | 5/-15 | No | Yes | Yes | Parka | N/A | N/A | N/A | PrimaLoft Gold Insulation Eco | 133 + 40 g | Pertex Quantum Pro | Around Town | Regular | 555 g / 1lb 3.6 oz | 84 cm / 33 in | |
Arc'teryx Patera (Women's) | 5/-15 | Review | No | No | Yes | Parka | 750 | 58 | 43,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Trim | 867 g / 1 lb 14.6 oz | 93 cm / 37 in |
Black Diamond Access Down (Men's - Women's) | 7/-14 | No | Yes | Yes | Down | 700 | 155 | 108,500 | N/A | N/A | 30D ripstop nylon | All Round | Regular | 442 g / 15.6 oz | 76 cm / 29.75 in | |
Arc'teryx Kappa (Men's) | 7/-14 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 140 g/m² | N70p Gore Thermium | All Round | Regular | 755 g / 1 lb 10.6 oz | 80 cm / 31.5 in |
Arc'teryx Prema Down Coat (Women's) | 7/-14 | No | No | Yes | Parka | 750 | 92 | 69,000 | N/A | N/A | Nylon | Around Town | Regular | 794 g / 1 lb 12 oz | 117 cm / 46.1 in | |
Arc'teryx Radsten Insulated (Men's) | 7/-14 | No | No | No | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Regular | 715 g / 1 lb 9.2 oz | 73 cm / 28.75 in | |
Rab Microlight Alpine (Men's - Women's) | 7/-14 | No | Yes | No | Down | 700 | 153 | 107,100 | N/A | N/A | 30D Pertex Quantum | All Round | Regular | 466 g / 1 lb 0.5 oz | 72 cm / 28.5 in | |
Arc'teryx Thorium (Men's - Women's) | 7/-14 | Review | No | Yes | Yes | Down | 750 | 140 | 105,000 | Coreloft | 80 + 140 g/m² | Arato 30 | All Round | Regular | 517 g / 1 lb 2.2 oz | 71.5 cm / 28.1 in |
Feathered Friends Eos | 8/-13 | No | Yes | No | Down | 900 | 105 | 94,500 | N/A | N/A | Pertex Quantum | All Round | Regular | 306 g / 10.8 oz | ? | |
Arc'teryx Thorium AR (Men's - Women's) | 8/-13 | Review | No | Yes | No | Down | 750 | 130 | 97,500 | Coreloft | 80 + 140 g/m² | Arato 30 | All Round | Regular | 490 g / 1 lb 1.3 oz | 72 cm / 28.3 in |
Patagonia Macro Puff (Men's - Women's) | 8/-13 | Review | No | No | No | Synthetic | N/A | N/A | N/A | PlumaFill | 135 + 90 g | 10D Recycled nylon ripstop | All Round | Regular | 435 g / 15.3 oz | 79 cm / 31 in |
Arc'teryx Macai LT (Men's) | 8/-13 | Yes, zips | No | No | Down | 750 | 49 | 36,750 | Coreloft Compact | 60 g/m² | N40p-X 3L Gore-Tex | Ski/Snowboard | Regular | 855 g / 1 lb 14.2 oz | 74 cm / 29.1 in | |
Arc'teryx Seyla (Women's) | 8/-13 | No | No | Yes | Parka | 750 | 92 | 69,000 | N/A | N/A | Arato 10 | Around Town | Regular | 507 g / 1 lb. 1.9 oz. | 87 cm / 34.4 in | |
Patagonia Fitz Roy (Men's - Women's) | 8/-13 | No | Yes | No | Down | 800 | 128 | 102,400 | N/A | N/A | 20D Nylon | All Round | Regular | 632 g / 1lb 6.3 oz | 74 cm / 29 in | |
Arc'teryx Koda (Men's) | 8/-13 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 + 140 g/m² | N80p-X Gore-Tex | Around Town | Regular | 720 g / 1 lb 9.4 oz | 75 cm / 29.5 in | |
Patagonia Vosque 3-in-1 (Women's) | 10/-12 | Review | No | No | No | Parka | N/A | N/A | N/A | ThermoLite | 100 g | 65% nylon, 35% polyester | Around Town | Regular | 1.360 kg / 3 lb | 90 cm / 35.5 in |
Patagonia City Storm Down (Men's - Women's) | 12/-11 | No | Yes | No | Parka | 700 | 191 | 133,700 | N/A | N/A | 4.2 oz polyester | All Round | Regular | 468 g / 16.5 oz | 91 cm / 36 in | |
Patagonia Jackson Glacier (Men's - Women's) | 12/-11 | Review | No | No | Yes | Parka | 700 | 141 | 98,700 | N/A | N/A | 3.6 oz 50D polyester | Around Town | Regular | 880 g / 1 lb 15 oz | 79 cm / 31 in |
Arc'teryx Sensa (Women's) | 14/-10 | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft Compact | 120 g/m² | NP100d Gore-Tex 2L | Around Town | Relaxed | 785 g / 1 lb 11.7 oz | 86 cm / 34 in | |
Patagonia Hi Loft Down (Men's - Women's) | 14/-10 | Review | No | Yes | No | Down | 600 | 177 | 106,200 | N/A | N/A | 1.4 oz 30D polyester | All Round | Regular | 540 g / 1 lb 3 oz | 76 cm / 30 in |
REI Magma 850 Hoodie 2.0 (Men's - Women's) | 14/-10 | No | Yes | No | Down | 850 | 120 | 102,000 | N/A | N/A | Pertex mini ripstop nylon | All Round | Regular | 340 g / 13.75 oz | 74 cm / 29.25 in | |
Arc'teryx Beta Insulated Coat (Women's) | 16/-9 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft | 80 g/m² + 120 g/m² | 2L 40D Gore-Tex | Around Town | Regular | 600 g / 1 lb 5.2 oz | ? |
Arc'teryx Atom AR (Men's - Women's) | 18/-8 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 120 g/m2 + 80 g/m2 + 60 g/m2 | 30D Tyono | All Round | Regular | 475 g / 1 lb | 74 cm / 29.1 in |
Patagonia Downdrift (Men's - Women's) | 18/-8 | No | No | No | Down | 600 | 279 | 167,400 | N/A | N/A | 4.2 oz polyester | Around Town | Regular | 1.014 kg / 2 lb 3.8 oz | ? | |
Arc'teryx Magnus (Men's) | 19/-7 | No | No | No | Parka | N/A | N/A | N/A | Coreloft | 80 g | N60p Gore-Tex 2L | Around Town | Regular | 690 g / 1 lb 8.3 oz | 83 cm / 32.5 in | |
Arc'teryx Agrium (Men's - Women's) | 21/-6 | No | Yes | No | Down | 850 | 117 | 99,450 | N/A | N/A | Arato | All Round | Regular | 365 g / 12.9 oz | 75 cm / 29.5 in | |
Patagonia AlpLight Down (Men's - Women's) | 21/-6 | No | Yes | No | Down | 800 | 100 | 80,000 | N/A | N/A | 0.8 oz 10D polyester | All Round | Slim | 270 g / 9.5 oz | 74 cm / 29 in | |
Arc'teryx Beta Insulated (Men's - Women's) | 21/-6 | Review | Yes, zips | No | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 80 g/m² | 2L 40D Gore-Tex | All Round | Regular | 680 g / 1 lb 8 oz | 78.5 cm / 31 in |
Patagonia Topley (Men's) | 23/-5 | No | No | Yes | Down | 700 | 172 | 120,400 | N/A | N/A | 6 oz polyester | All Round | Regular | 1.133 kg / 2 lb 8 oz | 77 cm / 30.5 in | |
Arc'teryx Alpha IS (Men's) | 23/-5 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 65 g/m² | N40p-X 2L Gore-Tex | Climbing | Regular | 610 g / 1 lb 5.5 oz | 78 cm / 30.75 in | |
Rab Xenon 2.0 (Men's - Women's) | 23/-5 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | PrimaLoft Silver | 60 g | 30D Pertex Quantum | All Round | Regular | 385 g / 13.6 oz | 71.5 cm / 28.1 in | |
Patagonia Down Sweater (Men's - Women's) | 23/-5 | Review | No | Yes | No | Down | 800 | 150 | 120,000 | N/A | N/A | 1.4 oz 20x30D polyester | All Round | Regular | 428 g / 15.1 oz | 67 cm / 26.25 in |
Arc'teryx Ralle Parka (Men's) | 25/-4 | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 g/m² | 2L 40D Gore-Tex | Around Town | Regular | 735 g / 1 lb 9.9 oz | ? | |
Patagonia Silent Down (Men's - Women's) | 26/-3 | Review | No | No | No | Down | 700 | 109 | 76,300 | N/A | N/A | 2.2 oz polyester | Around Town | Regular | 585 g / 1 lb 4.7 oz | 74 cm / 29 in |
Arc'teryx Therme Insulated (Men's) | 26/-3 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | 2L Gore-Tex | Around Town | Regular | 960 g / 2 lb 1.9 oz | 73 cm / 28.75 in |
Arc'teryx Cerium (Men's - Women's) | 26/-3 | No | Yes | No | Down | 850 | 113 | 96,050 | Coreloft | 80 + 100 g/m² | Arato 15 | All Round | Trim | 335 g / 11.8 oz | ? | |
Mountain Hardwear GW/2 (Men's - Women's) | 28/-2 | No | Yes | No | Down | 800 | 85 | 68,000 | N/A | N/A | 10D Ripstop Nylon | All Round | Trim | 250 g / 8.8 oz | 70 cm / 27.5 in | |
Arc'teryx Cerium LT (Men's - Women's) | 28/-2 | Review | No | Yes | No | Down | 850 | 102 | 86,700 | Coreloft | 80 + 100 g/m² | Arato 10 | All Round | Trim | 305 g / 10.8 oz | 72 cm / 28.3 in |
Arc'teryx Nuclei FL (Men's - Women's) | 32/0 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 65 g/m² | Arato 10r | Climbing | Trim | 325 g / 11.5 oz | 75 cm / 29.5 in |
Patagonia DAS Light (Men's - Women's) | 34/1 | No | Yes | Yes | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | 0.8-oz 10-denier Pertex Quantum Pro | Climbing | Regular | 320 g / 11.3 oz | 77 cm / 30.5 in | |
Patagonia Micro Puff (Men's - Women's) | 36/2 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | Pertex Quantum | All Round | Trim | 298 g / 10.5 oz | 75 cm / 29.5 in |
Patagonia Isthmus (Men's) | 36/2 | No | No | No | Parka | N/A | N/A | N/A | ThermoGreen | 60 g | 4.2 oz polyester | Around Town | Regular | 895 g / 1 lb 15.6 oz | 70 cm / 27.5 in | |
Arc'teryx Proton LT (Men's - Women's) | 37/3 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 80 g/m2 + 60 g/m2 | Fortius Air 20 | Climbing | Trim | 375 g / 13.2 oz | 75 cm / 29.4 in |
Patagonia Nano Puff (Men's - Women's) | 37/3 | Review | No | Yes | No | Synthetic | N/A | N/A | N/A | PrimaLoft Gold Insulation Eco | 60 g | 22D Polyester | All Round | Regular | 363 g / 12.8 oz | 71.5 cm / 28 in |
Arc'teryx Norvan SL Ins. (Men's - Women's) | 39/4 | No | Yes | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | Gore-Tex ShakeDry | Running | Trim | 270 g / 9.5 oz | 71.5 cm / 28.1 in | |
Patagonia Nano Air (Men's - Women's) | 41/5 | Review | No | No | No | Synthetic | N/A | N/A | N/A | FullRange | 60 g | 33D Nylon ripstop | All Round | Trim | 318 g / 11.2 oz | ? |
Arc'teryx Atom LT (Men's - Women's) | 43/6 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Continuous | 60 g/m² | 20D Tyono | All Round | Trim | 375 g / 13.2 oz | 74 cm / 29.1 in |
Arc'teryx Cerium SL (Men's - Women's) | 43/6 | Review | No | Yes | No | Down | 850 | 58 | 49,300 | Coreloft | 40 + 100 g/m² | Arato 7 | All Round | Trim | 215 g / 7.6 oz | 69 cm / 27.2 in |
Arc'teryx Proton Hybrid (Men's - Women's) | 46/8 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | Fortius™ Air 50 | All Round | Trim | 365 g / 12.9 oz | ? |
Arc'teryx Proton FL (Men's) | 48/9 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Octa Loft | 94 g/m² | Fortius Air 20 | Climbing | Trim | 323 g / 11.4 oz | 77 cm / 30.4 in |
Arc'teryx Atom SL (Men's - Women's) | 52/11 | Review | Yes, mesh | No | No | Synthetic | N/A | N/A | N/A | Coreloft Compact | 40 g/m² | 20D Tyono | All Round | Trim | 245 g / 8.6 oz | 72 cm / 28.3 in |
REI Stormhenge Hybrid (Men's - Women's) | Testing | Yes, zips | No | No | Down | 850 | ? | N/A | N/A | 40D + 80D | All Round | Regular | 900 g / 1 lb 15.75 oz | 80 cm / 31.5 in | ||
Arc'teryx Monitor Insulated (Women's) | Testing | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 + 100 g/m² | 40D 3L Gore-Tex | Around Town | Oversized | 645 g / 1 lb 6.8 oz | 93 cm / 37 in | |
Arc'teryx Coelle (Women's) | Testing | No | No | Yes | Parka | N/A | N/A | N/A | Coreloft | 80 + 140 g/m² | 40D 2L Gore-Tex | Around Town | Regular | 460 g / 1 lb 0.2 oz | 93 cm / 37 in |
If you want to read more about them simply visit their reviews.
Both jackets are true to size, by the way. So I wouldn't recommend sizing up or down.
Atom LT 2020 Revision
Not much has changed really.
With the 2020 revision, Atom LT is given a dope-dyed liner, a new construction on the cuff and is now 1" (2.5 cm) longer.
So, as a result;
- Cuff construction allows for easier on/off and layering,
- Durability is slightly increased now owing to Dope-dyed liner (Dope Permeairâ„¢ 20 - 100% nylon) - but the difference is really not noticeable at all.
Additionally, Dope Dying is much more environmentally friendly, so Arc'teryx is also reducing their mark on the planet by incorporating it into the production process.
Proton LT 2019 Revision
Fortius 40 vs 20
In order to increase breathability, designers decided to change the insulation material from Fortius 40 to Fortius 20. In English: Fabric is now slightly thinner but also more air-permeable.
This is measured with a metric called CFM (cubic feet per minute). The new Proton LT has a CFM of 40 compared to the CFM of 20 that belongs to the older version.
Coreloft Continuous vs Compact
Because the Coreloft Compact of the revised (new) version is composed of highly crimped fibers, it's more compressible and air-permeable compared to the Coreloft Continuous of the previous version.
The Coreloft Continous, on the other hand, has more fluff at the beginning (so slightly higher CLO value - which means slightly warmer) but can pack down over time meaning that the jacket will eventually lose some of its fluff and warmth a little bit.
We can say that the warmth didn't really change noticeably (if at all).
Continuous is also more durable since it's less air-permeable.
Since the design intent of Proton LT is a highly air-permeable jacket for high output activity, design team decided to switch to Coreloft Compact for air-permeability and packability reasons.
Results
Compared to the previous model, the most recent (2019) version of Proton LT is;
- lighter,
- more packable,
- more breathable,
- slightly less durable.
Fit remains the same.
Conclusion
These hoodies are much more similar than they're different. Get the Atom LT if you want slightly higher breathability, and get the Proton LT if you want slightly higher warmth, durability and weather & abrasion resistance.
Links:
- https://arcteryx.com/us/en/shop/mens/proton-lt-hoody
- https://arcteryx.com/us/en/shop/mens/atom-lt-hoody
- https://arcteryx.com/us/en/shop/womens/proton-hoody
- https://arcteryx.com/us/en/shop/womens/atom-hoody
- Arc'teryx Jacket Finder: https://arcteryx.com/us/en/shop/jacket-finder/
If you prefer videos, here's a good review of Atom LT:
That of Proton LT:
Transcript of Customer Service Chat for 2020 Atom LT Updates
- Hi there! My name is Camille, how can I help you today?
- Hi Camille. I was wondering about the updates that took place for the 2020 revision of Atom LT. Can you list all the changes, please?
- Hi there, thanks for chatting. I sure can.
- The redesign includes an update to the cuff construction for easier on/off and layering, an updated material package for enhanced durability, updated fit, and a dope dyed liner.
- What do you mean by updated material package?
- We updated the materials the Atom LT is made of, you can read a list of them here:
- Coreloft™ Compact (60 g/m² ) insulation. Highly crimped, multi-denier siliconized polyester yarn that has undergone a special process which reduces the thickness of the material by 50%, without reducing its insulation value by the same amount. Lightweight, breathable, thermally efficient 100% polyester fibre.
Tyonoâ„¢ 20 denier shell with DWR treatment - 100% nylon
Stretch fleece - 94% polyester, 6% elastane
Dope Permeairâ„¢ 20 - 100% nylon - Last year's model did not include the Dope Permeair.
- How does it affect the use of this jacket in practice?
- It doesn't effect it, really - Dope Dying is much more environmentally friendly so we are reducing our mark on the planet by incorporating it into the production process.
- Overall the updated Atom saw more changes with the fit, durability and construction on the cuff.
- If anything it's very slightly more durable now.
- Which update made it more durable?
- The additional dope dyed liner.
- Ok, thanks. Lastly, how did the fit change?
- It is about 1" longer than the previous year's model.
- So other than this hem length difference, everything stays the same in the fit department?
- That's right.
What do you think of the updated Fall 2019 Proton LT compared to the updated Fall 2019 Patagonia Nano Air? I think this would be a great comparison!
Craig,
Most important thing to note here is that these 2 jackets are MUCH more alike than they’re not. I’d say they’re 90% the same (except the Air looks quite ugly and Proton LT looks quite gorgeous to most people).
The scores in this chart might help you:
https://outdoorcrunch.com/synthetic-insulated-jackets/
As you see, Nano Air is a perfect technical piece. Proton LT, on the other hand, is also a perfect technical piece, but, compared to Air, it’s also more suitable for casual outgoings as well.
If you’ll be using the jacket both in the town when it’s cold out AND during high output activities, I’d recommend Proton LT.
If you’ll be using it during high output activities only, I’d recommend the Air.
Hope this helps.
Great comparison! Some notes though. I think that the new Proton has a new internal liner as well, no? If Permeair is new, then basically they changed every material in the jacket! Seems a pretty big overhaul for me. I always felt that the old Proton had a too thick outer fabric, and it could pack a bit better and breathes less than Nano Air. Preferred the Proton fit all the way. Atom LT did not do it for me (those annoying side panels).
Arc’teryx developed a lighter Proton FL at the same time with Octaloft insulation and the lighter Fortius 20 outer fabric (which it now shares with new Proton LT. I’d have to check out the new LT out if I didn’t have the old one. For now, I’ll be getting the FL for layering and maximizing the breathability.
In the meanwhile, I’d love to see Proton LT old vs new comparisons!
Just discovered Arcteryx a couple years ago, and I’m glad I did. Nothing else provides the technical details involved it making super light but warm outdoor gear in my opinion. Just curious as to how the Atom AR was rated as providing more warmth than the Cerium Lt? I have the Cerium Lt and sweat with it indoors at room temp. I know the Atom AR has slightly more synthetic insulation,, but figured as far as strictly warmth, down is warmer overall, no? If that’s the case I’m going to seriously look into an Atom AR for the future as I do prefer synthetic over down,,, mainly because with down you can never wear anything black or dark colored without feathers attaching to your sweaters etc. Great detailed review. Thank you.
Hi!
I live in Sweden and have both jackets.
You forgot to mention one important thing in difference.
The Atom LT can stand against in fairly windy conditions while the Proton LT has absolutely no wind barrier at all and you have to put on a shell. The wind blows right through the Proton.
Thank you for sharing your thoughts and experiences Janusz 🙂
Hi,
The Atom LT has been updated with the same Coreloft Compact as Proton LT this year, so with 20g less but same insulation materials, isn’t the Atom LT being less warmer but more air-permeabe in 2020?
Thanks
Where does the Gamma LT Jacket fit into this?
Thanks for the great review!
Hi Ross,
Gamma LT isn’t insulated. Check out my guide to Arc’teryx Shells if you’re interested in more information about the Gamma LT.
Hello,
love your reviews, I would like to know your opinion about the Proton LT and the Atom AR.
Which one do you recommend to wear for a daily base stand alone jacket (I live in London, so basically deal with the UK weather)
Thanks
Thank you for your comment Giuseppe!
Atom AR is warmth focused, and the Proton LT is breathability focused. Correct me if I’m wrong, but London must be freezing now haha. So, unless you’re planning to use this jacket for high output activities, I’d get the Atom AR. Perfect for stationary use. Plus: Synthetic insulated structure of the Atom AR doesn’t keeps warm even under damp weather (unlike down insulated jackets). An important point for London, if you ask me.
Anyone else noticed a size difference between Proton and Atom?
I have historically always been a small in everything Arc’teryx but not as of late.
Small in Nuclei, Proton and also the Kyanite (I know it’s a fleece but nonetheless) is dreadfully tight and I have had to go up to a medium. Small still fits perfect in both 2020 Atom iterations though. Go figure…
Hi –
It seems the Atom LT has been updated with Coreloft Compact 60gm. Have you tested this version as it would seem that this should improve the breath ability?
Thanks
Hey thanks for the reviews it really helps! I live in Montreal, Canada and I’m shopping layers to put underneath my Beta AR. I have a very good first layer, a couple of fleeces and obviously a Beta AR. So from what I understood, when I go resort skiing, the Atome LT and Proton LT would both be good options? I’m used to having one ski jacket and this layer system is diffirent for me. Thanks for your help!