Summary
Name | Est. Temp (F/C) | Review | Pit venting? | Two way zipper? | Stuffs into itself? | 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 | No |
Feathered Friends Khumbu | -17/-27 | No | No | Yes | Down | 900 | 378 | 340,200 | Primaloft Gold | 200 g | Pretex Shield XT | All Round | Regular | 960 g / 2 lb 2 oz | ? | No | |
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 | Yes |
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 | No | |
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 | No | |
Arc'teryx Therme SV (Men's) | -11/-24 | Review | No | Yes | No | 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 | No |
Patagonia Grade VII (Men's) | -11/-24 | No | Yes | No | 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 | No | |
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 | Yes |
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 | No | |
Arc'teryx Thorsen (Men's) | -7/-22 | Review | No | Yes | No | 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 | Yes |
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 | No |
Mountain Equipment Li. Ec. (Men's - Women's) | -5/-20 | No | Yes | No | Down | 700 | 295 | 206,500 | N/A | N/A | 50D Drilite | All Round | Regular | 822 g / 1 lb 13 oz | 72 cm / 28 in | No | |
Arc'teryx Thorium Parka (Women's) | -2/-19 | Review | No | Yes | No | Parka | 750 | 209 | 156,750 | Coreloft | 80 + 140 g/m² | Arato 20 | Around Town | Regular | 610 g / 1 lb 5.5 oz | 115.8 cm/ 45.6 in | No |
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 | No | |
Arc'teryx Patera Long (Women's) | 0/-18 | No | Yes | No | Parka | 750 | 204 | 153,000 | 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 | No | |
Arc'teryx Beta Down Insulated (Men's) | 0/-18 | Yes | Yes | No | Parka | 850 | 126 | 107,100 | Coreloft | 80 g/m² | 2L 40D Gore-Tex | All Round | Regular | 760 g / 1 lb 10.8 oz | ? | No | |
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 | Yes |
Arc'teryx Centrale (Women's) | 0/-18 | Review | No | Yes | No | 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 | Yes |
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 | Yes |
Arc'teryx Cerium SV (Men's) | 0/-18 | Review | No | No | Yes | 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 | Yes |
Arc'teryx Revet (Men's) | 2/-17 | No | Yes | No | 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 | Yes | ||
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 | Yes | |
Arc'teryx Fission SV (Men's - Women's) | 3/-16 | Review | No | Yes | No | 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 | Yes |
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 | ? | No | |
Outdoor Research Sup. Alp. (Men's - Women's) | 3/-16 | No | Yes | No | 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 | No | |
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 | Yes | |
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 | No |
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 | Yes | |
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 | No | |
Arc'teryx Therme Parka (Men's) | 5/-15 | Review | No | Yes | No | 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 | No |
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 | Yes |
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 | No |
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 | No | |
Arc'teryx Patera (Women's) | 5/-15 | Review | No | Yes | No | Parka | 750 | 58 | 43,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Trim | 867 g / 1 lb 14.6 oz | 99 cm / 39 in | No |
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 | No | |
Arc'teryx Kappa (Men's) | 7/-14 | Review | No | Yes | No | 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 | Yes |
Arc'teryx Prema Down Coat (Women's) | 7/-14 | No | Yes | No | Parka | 750 | 92 | 69,000 | N/A | N/A | Nylon | Around Town | Regular | 794 g / 1 lb 12 oz | 117 cm / 46.1 in | Yes | |
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 | Yes | |
Rab Microlight Alpine (Men's - Women's) | 7/-14 | No | No | Yes | 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 | No | |
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 | No |
Feathered Friends Eos | 8/-13 | No | No | Yes | Down | 900 | 105 | 94,500 | N/A | N/A | Pertex Quantum | All Round | Regular | 306 g / 10.8 oz | ? | No | |
Arc'teryx Thorium AR 2020 (Men's - Women's) | 8/-13 | Review | No | No | Yes | 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 | Yes |
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 | No |
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 | Yes | |
Arc'teryx Seyla (Women's) | 8/-13 | No | Yes | No | 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 | Yes | |
Patagonia Fitz Roy (Men's - Women's) | 8/-13 | No | No | Yes | Down | 800 | 128 | 102,400 | N/A | N/A | 20D Nylon | All Round | Regular | 632 g / 1lb 6.3 oz | 74 cm / 29 in | No | |
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 | Yes | |
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 | No |
Patagonia City Storm Down (Men's - Women's) | 12/-11 | No | No | Yes | 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 | No | |
Patagonia Jackson Glacier (Men's - Women's) | 12/-11 | Review | No | Yes | No | 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 | No |
Arc'teryx Sensa (Women's) | 14/-10 | No | Yes | No | 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 | Yes | |
Patagonia Hi Loft Down (Men's - Women's) | 14/-10 | Review | No | No | Yes | 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 | No |
REI Magma 850 Hoodie 2.0 (Men's - Women's) | 14/-10 | No | No | Yes | 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 | No | |
Arc'teryx Beta Insulated Coat (Women's) | 16/-9 | Review | No | Yes | No | 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 | ? | No |
Arc'teryx Atom Hw. (aka 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 | No |
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 | ? | No | |
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 | Yes | |
Arc'teryx Proton Hw. (Men's - Women's) | 21/-6 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft | 100 g/m2 + 60 g/m2 | Fortius Air 50 | Climbing | Regular | 540 g / 1 lb 3 oz | 77 cm / 30.5 in | No |
Arc'teryx Agrium (Men's - Women's) | 21/-6 | No | No | Yes | Down | 850 | 117 | 99,450 | N/A | N/A | Arato | All Round | Regular | 365 g / 12.9 oz | 75 cm / 29.5 in | Yes | |
Patagonia AlpLight Down (Men's - Women's) | 21/-6 | No | No | Yes | 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 | No | |
Arc'teryx Beta Insulated (Men's - Women's) | 21/-6 | Review | Yes, zips | Yes | No | 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 | No |
Patagonia Topley (Men's) | 23/-5 | No | Yes | No | 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 | No | |
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 | Yes | |
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 | No | |
Patagonia Down Sweater (Men's - Women's) | 23/-5 | Review | No | No | Yes | 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 | No |
Arc'teryx Ralle Parka (Men's) | 25/-4 | No | Yes | No | 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 | 83 cm / 32.5 in | No | |
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 | No |
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 | Yes |
Arc'teryx Cerium (aka LT) (Men's - Women's) | 26/-3 | No | No | Yes | Down | 850 | 113 | 96,050 | Coreloft | 80 + 100 g/m² | Arato 15 | All Round | Trim | 335 g / 11.8 oz | 72 cm / 28.3 in | No | |
Mountain Hardwear GW/2 (Men's - Women's) | 28/-2 | No | No | Yes | 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 | No | |
Arc'teryx Cerium LT 2020 (Men's - Women's) | 28/-2 | Review | No | No | Yes | 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 | Yes |
Arc'teryx Nuclei (aka FL) (Men's - Women's) | 32/0 | Review | No | No | Yes | 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 | No |
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 | No | |
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 | No | |
Arc'teryx Proton (aka 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 | No |
Patagonia Nano Puff (Men's - Women's) | 37/3 | Review | No | No | Yes | 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 | No |
Arc'teryx Norvan SL Ins. (Men's - Women's) | 39/4 | No | No | Yes | 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 | Yes | |
Patagonia Micro Puff (Men's - Women's) | 41/5 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | Pertex Quantum | All Round | Regular | 298 g / 10.5 oz | 75 cm / 29.5 in | No |
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 | ? | No |
Arc'teryx Atom (aka 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 | No |
Arc'teryx Cerium Lw. (aka SL) (Men's - Women's) | 43/6 | Review | No | No | Yes | 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 | No |
Arc'teryx Cerium Hybrid (Men's) | 44/7 | No | No | Yes | Down | 850 | 44 | 37,400 | Coreloft | 40 + 100 g/m² | Arato 15 + Fortius Air 50 | All Round | Trim | 260 g / 9.2 oz | 70 cm / 27.5 in | No | |
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 | 76 cm / 30 in | No |
Arc'teryx Proton Lw. (aka FL) (Men's - Women's) | 48/9 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Octa Loft | 94 g/m² | Fortius Air 20 | Climbing | Trim | 343 g / 12.1 oz | 75 cm / 29.5 in | No |
Arc'teryx Atom Lw. (aka 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 | 270 g / 9.5 oz | 72 cm / 28.3 in | No |
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 | No | ||
Arc'teryx Coelle Parka (Women's) | Testing | No | Yes | No | 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 | 95 cm / 37.4 in | No | |
Sabre Insulated (Men's) | Testing | Yes, zips | Yes | No | Synthetic | N/A | N/A | N/A | N/A | Coreloft | 60 + 80 g/m² | Fortius Air 50 | Regular | 535g / 1 lb 2.9 oz | ? | No |
Find the estimated average lowest temperature ratings you can wear each jacket above, assuming:
- you only have a shirt under and no shell over,
- you're walking,
- it's a bit windy and there's no precipitation.
If you think you run warmer or colder than the average person, then shift these ratings accordingly.
Also,
- Always opt for the warmer option when in doubt.
- Ratings will best respond to men's physiology. As most women tend to run colder than men, for women, bumping each rating by 10 - 20 deg F (5 - 10 deg C) is recommended.
- Ratings are applicable to your torso and arms only. In colder weather (below, say, 20 deg F (-6 deg C)), it becomes much harder to keep your hands, feet and head warm rather than your torso and arms.
- This is why getting beanies, gloves and socks are game changers in this regard.
- Further reading:
- CLO values of synthetic insulators: https://outdoorcrunch.com/clo-values/
- Guide to Arc'teryx Jackets: https://outdoorcrunch.com/best-arcteryx-jacket/
- Guide to Patagonia Jackets: https://outdoorcrunch.com/best-patagonia-jackets/
- Also see:
- Arc'teryx Jacket Finder: https://arcteryx.com/us/en/shop/jacket-finder
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.
Most companies will claim that providing temperature ratings isn't possible.
And they're not incorrect. There are tons of fluid parameters that are difficult to measure if not impossible. Not to even mention the subjective nature of the feeling of warmth.
Having said that...
It is possible to provide approximate values for an average person making some strict assumptions around layering and weather conditions.
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- #A sidenote here: Arc'teryx's PDF guide to jackets is GOOOLLLLDDDDD. Absolutely check that out too if you're interested in buying one.
Which is what you'll find out in this post.
The context of this study will be evaluated in two parts:
- Working principles of down jackets,
- Working principles of synthetic insulated jackets.
Let's get to it.
Understanding the Working Principle of Down Insulated Jackets
Down quality and down amount are the two most important things when it comes to the ultimate warmth provided by any down insulated garment.
You'll mostly come across this as fill power and fill weight respectively.
Because the word "down" is typically referred to as "fill" within the language of down pieces.
Let's take a look at the former first.
Fill Power
Fill Power represents the fully expanded, end volume of a 1 oz down (goose or duck). It's in cubic inches.
For example, a 800 FP (fill power) down will end up getting 800 cubic inches when it's fully expanded.
Because the insulation occurs by trapping air within the vacant spots of down, followed by having that air heated using our body heat as the source.
So, the higher the volume of trapped air (which is directly proportional with Fill Power), the more air will be heated & work as insulation as a result.
Fill power.
In the end, you'll feel warmer inside the jacket you're wearing.
This number varies anywhere from 500 to 1000, although the majority of quality brands (such as Arc'teryx, Patagonia, Feathered Friends, Outdoor Research, Marmot, REI Co-op, Enlightened Equipment, Rab, Black Diamond, Mountain Equipment and Mountain Hardwear)...
...mostly use down between 650 FP and 850 FP.
As you'll see, there are outliers, though. A notable one would be Feathered Friends Eos, which is equipped with a whooping 900 FP down.
Now before we get to fill weight, speaking of fill power...
...warmth actually isn't the only thing that it affects.
Other roles of fill power
It has additional three important roles:
- Loft retention during movement: Higher FP down will retain its loft with minimal loss during movement. The lower the FP, the larger the loss in this department.
- Higher impact on end warmth: Compared to FW (fill weight), FP has a larger impact on the warmth the insulated jacket provides.
For the sake of minimizing confusion and keeping this as clear as possible, equal weights of importance are placed on fill power and fill weight when calculating FP * FW values (which you'll come across as you read on).
...although these effects has been included when calculating the temperature ratings of jackets within their first year.
After all, FP * FW is not the only factor considered while laying out the temperature ratings.
Tens of parameters are assessed, and the values put together at the end are the final results, including the few extra effects of fill power.
- Durability of insulation capability
- A jacket with a higher FP down minimizes its loss of insulating power over time. You'd be able to use a 850 FP down jacket for decades, and it'd feel almost just as warm as the first day you put it on.
- A jacket with a lower FP down, on the other hand, might not and probably will not prove nearly as durable. In our experiences, jackets equipped with 650 FP down are more likely to feel noticeably colder after, say, 2-3 years.
If you, on the other hand, are not planning to use your jacket for more than a few years, then this might not be that important to you after all.
By the time it starts to lose its insulating power noticeably, you'll have gotten yourself a new piece anyway.
- Compressibility: A jacket with a higher FP down will offer a smaller packed size.
Here's a video that also does a good job explaining fill power:
Moving on to our other major factor...
Fill Weight
Fill weight is the total amount of down the jacket is equipped with.
Some other resources might claim that fill weight is much less important than fill power when it comes to warmth, but that's far from reality.
In terms of warmth, fill weight is very, very important. Almost (in some conditions it even is) just as important as fill power.
Because, just like fill power, fill weight also directly affects the total amount of air trapped within the vacant spots of down.
Warmth Calculation
So...
As explained earlier, fill power and fill weight are the two most important factors when it comes to warmth.
In many cases, on a larger scale, assuming both jackets are equipped with the same amount of equally capable synthetic insulation, it is possible to make very close estimations by multiplying them when comparing warmth ratings of two different pieces.
For example...
- Arc'teryx Cerium SV offers 162 grams of 850 FP down.
- 105*900 = 137,700
- Rab Positron Pro offers 300 grams of 800 FP down.
- 116*650 = 240,000
Since 240,000 is significantly greater than 137,700; it's safe to say that the former will be noticeably warmer than the latter.
One point should be made in here is that although the Positron will come warmer, thanks to the higher FP down of Cerium SV:
- it'll stay almost equally warm even after decades,
- it won't lose its insulation during movement,
- and it's quite a bit compressible.
Now...
There are reasons why this mostly won't work on a smaller scale (more on these later, under Other Factors heading).
Comparing two jackets with, say, 140,000 and 100,000 FP * FW values.
Understanding the Working Principle of Synthetic Insulated Jackets
Synthetic insulated jackets imitate the working principle of down insulated jackets. They're equipped with artificial insulators, rather than natural down obtained by geese and ducks.
Some examples to the names of these artificial insulators can be given as Coreloft and PlumaFill. Comparing the temperature ratings of synthetic insulated jackets is more difficult.
Because, unlike fill power parameter in down jackets, there isn't a common denominator to compare different types of synthetic insulators in an analytical way.
Maybe except one parameter?
CLO values
CLO value is the insulation power of an insulation setting.
For example, this value is 0.92 for 1 oz (28.35 grams) of a dry PrimaLoft One for one square yard. The important thing here is that unlike fill power, CLO is not a characteristic that is unique to one ounce of the material.
As you see in the example above, it isn't independent from the area of insulation (square yards).
So, a higher CLO actually points out to the insulation capability of an insulation setting as a whole. It does NOT necessarily mean that the insulator being used is any more capable than an insulation setting put together with a weaker insulator.
Given the right amount of thickness, any insulator can achieve desired CLO value. It's just going to end up being heavier. So, metaphorically, you can think of CLO value in synthetic insulated jackets as FP * FW value in down insulated jackets.
- Read more about CLO values: https://outdoorcrunch.com/clo-values/
Unfortunately, obtaining the CLO value for commercial products is absolutely impossible.
Having said that...
We can (and we do) use a made-up parameter to CLO/oz/yd² to replicate FP in down jackets.
Honehstein Institute certified. A quick recap here: As you see, synthetic insulators lose minimal insulating power when they get wet. Down, on the other hand, loses a lot of it.
But unfortunately, a new problem arises here. A fair amount of manufacturers come up with their unique insulators - such as Coreloft, PlumaFill, Octa, Stratus, FullRange, etc.
And just like CLO values, they're unwilling to reveal the CLO/oz/yd² values of their insulators too. Which are the numbers we would need to determine the warmth.
I asked Arc'teryx and Patagonia Customer Services myself about this, and came back empty handed.
Having said that...
During my research, I did come across some useful information that I can leverage. For example, as it turns out, the CLO/oz/yd² value for PrimaLoft One is 0.92. It's also 0.79 for PrimaLoft Sport and 0.74 for PrimaLoft Eco.
However...
These values aren't certain or completely trustworthy by any means. They aren't the results of scientific studies. I didn't detect them in any other place rather than forums, Reddit, or contacting manufacturers myself.
In the end, I put what I could find together and did my best to make an estimation. Fortunately, this calculation using the numerical value CLO was not the only information I had in my hands.
I had two additional (at least equally helpful) data: trying them out myself when I could, and gathering offline user experience.
Warmth Evaluation
So, in the end, I used at least two of these three items to estimate the overall temperature rating of an insulated jacket:
- Analyzed them scientifically (as explained earlier),
- Trying them out myself when I can,
- And/or gathering offline user experience.
And mostly all three above.
In addition to insulation types and amounts (which is what I covered so far), there are also other factors that impact the warmth of an insulated jacket.
Other factors
Let's talk about the most important and most common examples of these factors.
In most cases, these are considered minor next to insulation specific qualities. But they do have a noticeable effect, and combined together, they might come close to affect the warmth as much as the insulator capability and amount.
- Bagginess,
- Length,
- Outer fabric,
- Distribution of insulation.
Bagginess
I also talked about this more in my my Arc'teryx Thorsen vs Therme vs Camosun post.
Baggier cut of Cerium SV helps with its incredible warmth.
Briefly, the amount of trapped air increases as the jacket gets baggier. So more air works as insulation, and ultimately you're kept warmer.
There certainly is something as "too baggy", though. After some point, more inner volume only holds the warmth back.
Length
This has two effects.
First one is that the amount of trapped air, which is explained above.
And second, in colder weather, it becomes much harder to warm your legs and feet than your torso and arms.
This is why a jacket with a longer hem length will feel warmer. And the difference is pretty noticeable.
Outer fabric
Outer fabric is actually much more about weather resistance, but it also affects warmth a little bit.
As explained earlier, no down jacket is able to offer top notch weather resistance since they get clumped and lose their loft when they get wet. Either from your sweat or from weather conditions. Doesn't matter.
Having said that, it's still possible to prevent it to a certain degree. Some products offer a more fragile face fabric, while others can bead water more efficiently. These are directly proportional to face quality and DWR coating.
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.
For face fabrics, I'd list them like this:
Perfex Quantum Pro = Arato 30 > Perfex Quantum > Arato 10 = Drilite Loft 40D > Arato 7 = Drilite Loft 20D > others.
For synthetic jackets, outer fabric affects the warmth noticeably less.
Fill distribution
Some products of my favorite brand Arc'teryx are guilty of this. Take Firebee AR (read my review), for example. Nothing is wrong with the insulation at the back, collar and torso. They feel perfectly warm.
Whereas the insulation in arms, especially in lower arms, are seemingly slightly inadequate, which in the end affects the warmth feeling a little bit.
Reinforcements
Some (most?) down jackets are reinforced with synthetic insulation in strategical locations. More often than not, these are high wear areas such as shoulders, back, elbows, etc.
For the sake of simplicity, I don't list them in my tables - although I do take them into consideration when evaluating the end warmth of a jacket.
This is why you can see a jacket with smaller FP x FW rating outscoring a jacket with higher FP x FW rating. Because the former is equipped with (more) synthetic insulation reinforcements.
Results: Temperature Ratings
Down jackets lose insulating power noticeably when it gets wet. Synthetic jackets don't. This is why the dry weather assumption was made for both of them.
Name | Est. Temp (F/C) | Review | Pit venting? | Two way zipper? | Stuffs into itself? | 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 | No |
Feathered Friends Khumbu | -17/-27 | No | No | Yes | Down | 900 | 378 | 340,200 | Primaloft Gold | 200 g | Pretex Shield XT | All Round | Regular | 960 g / 2 lb 2 oz | ? | No | |
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 | Yes |
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 | No | |
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 | No | |
Arc'teryx Therme SV (Men's) | -11/-24 | Review | No | Yes | No | 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 | No |
Patagonia Grade VII (Men's) | -11/-24 | No | Yes | No | 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 | No | |
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 | Yes |
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 | No | |
Arc'teryx Thorsen (Men's) | -7/-22 | Review | No | Yes | No | 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 | Yes |
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 | No |
Mountain Equipment Li. Ec. (Men's - Women's) | -5/-20 | No | Yes | No | Down | 700 | 295 | 206,500 | N/A | N/A | 50D Drilite | All Round | Regular | 822 g / 1 lb 13 oz | 72 cm / 28 in | No | |
Arc'teryx Thorium Parka (Women's) | -2/-19 | Review | No | Yes | No | Parka | 750 | 209 | 156,750 | Coreloft | 80 + 140 g/m² | Arato 20 | Around Town | Regular | 610 g / 1 lb 5.5 oz | 115.8 cm/ 45.6 in | No |
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 | No | |
Arc'teryx Patera Long (Women's) | 0/-18 | No | Yes | No | Parka | 750 | 204 | 153,000 | 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 | No | |
Arc'teryx Beta Down Insulated (Men's) | 0/-18 | Yes | Yes | No | Parka | 850 | 126 | 107,100 | Coreloft | 80 g/m² | 2L 40D Gore-Tex | All Round | Regular | 760 g / 1 lb 10.8 oz | ? | No | |
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 | Yes |
Arc'teryx Centrale (Women's) | 0/-18 | Review | No | Yes | No | 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 | Yes |
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 | Yes |
Arc'teryx Cerium SV (Men's) | 0/-18 | Review | No | No | Yes | 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 | Yes |
Arc'teryx Revet (Men's) | 2/-17 | No | Yes | No | 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 | Yes | ||
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 | Yes | |
Arc'teryx Fission SV (Men's - Women's) | 3/-16 | Review | No | Yes | No | 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 | Yes |
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 | ? | No | |
Outdoor Research Sup. Alp. (Men's - Women's) | 3/-16 | No | Yes | No | 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 | No | |
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 | Yes | |
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 | No |
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 | Yes | |
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 | No | |
Arc'teryx Therme Parka (Men's) | 5/-15 | Review | No | Yes | No | 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 | No |
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 | Yes |
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 | No |
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 | No | |
Arc'teryx Patera (Women's) | 5/-15 | Review | No | Yes | No | Parka | 750 | 58 | 43,500 | Coreloft | 60 + 80 g/m² | 2L Gore-Tex | Around Town | Trim | 867 g / 1 lb 14.6 oz | 99 cm / 39 in | No |
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 | No | |
Arc'teryx Kappa (Men's) | 7/-14 | Review | No | Yes | No | 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 | Yes |
Arc'teryx Prema Down Coat (Women's) | 7/-14 | No | Yes | No | Parka | 750 | 92 | 69,000 | N/A | N/A | Nylon | Around Town | Regular | 794 g / 1 lb 12 oz | 117 cm / 46.1 in | Yes | |
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 | Yes | |
Rab Microlight Alpine (Men's - Women's) | 7/-14 | No | No | Yes | 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 | No | |
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 | No |
Feathered Friends Eos | 8/-13 | No | No | Yes | Down | 900 | 105 | 94,500 | N/A | N/A | Pertex Quantum | All Round | Regular | 306 g / 10.8 oz | ? | No | |
Arc'teryx Thorium AR 2020 (Men's - Women's) | 8/-13 | Review | No | No | Yes | 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 | Yes |
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 | No |
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 | Yes | |
Arc'teryx Seyla (Women's) | 8/-13 | No | Yes | No | 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 | Yes | |
Patagonia Fitz Roy (Men's - Women's) | 8/-13 | No | No | Yes | Down | 800 | 128 | 102,400 | N/A | N/A | 20D Nylon | All Round | Regular | 632 g / 1lb 6.3 oz | 74 cm / 29 in | No | |
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 | Yes | |
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 | No |
Patagonia City Storm Down (Men's - Women's) | 12/-11 | No | No | Yes | 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 | No | |
Patagonia Jackson Glacier (Men's - Women's) | 12/-11 | Review | No | Yes | No | 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 | No |
Arc'teryx Sensa (Women's) | 14/-10 | No | Yes | No | 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 | Yes | |
Patagonia Hi Loft Down (Men's - Women's) | 14/-10 | Review | No | No | Yes | 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 | No |
REI Magma 850 Hoodie 2.0 (Men's - Women's) | 14/-10 | No | No | Yes | 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 | No | |
Arc'teryx Beta Insulated Coat (Women's) | 16/-9 | Review | No | Yes | No | 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 | ? | No |
Arc'teryx Atom Hw. (aka 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 | No |
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 | ? | No | |
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 | Yes | |
Arc'teryx Proton Hw. (Men's - Women's) | 21/-6 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Coreloft | 100 g/m2 + 60 g/m2 | Fortius Air 50 | Climbing | Regular | 540 g / 1 lb 3 oz | 77 cm / 30.5 in | No |
Arc'teryx Agrium (Men's - Women's) | 21/-6 | No | No | Yes | Down | 850 | 117 | 99,450 | N/A | N/A | Arato | All Round | Regular | 365 g / 12.9 oz | 75 cm / 29.5 in | Yes | |
Patagonia AlpLight Down (Men's - Women's) | 21/-6 | No | No | Yes | 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 | No | |
Arc'teryx Beta Insulated (Men's - Women's) | 21/-6 | Review | Yes, zips | Yes | No | 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 | No |
Patagonia Topley (Men's) | 23/-5 | No | Yes | No | 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 | No | |
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 | Yes | |
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 | No | |
Patagonia Down Sweater (Men's - Women's) | 23/-5 | Review | No | No | Yes | 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 | No |
Arc'teryx Ralle Parka (Men's) | 25/-4 | No | Yes | No | 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 | 83 cm / 32.5 in | No | |
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 | No |
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 | Yes |
Arc'teryx Cerium (aka LT) (Men's - Women's) | 26/-3 | No | No | Yes | Down | 850 | 113 | 96,050 | Coreloft | 80 + 100 g/m² | Arato 15 | All Round | Trim | 335 g / 11.8 oz | 72 cm / 28.3 in | No | |
Mountain Hardwear GW/2 (Men's - Women's) | 28/-2 | No | No | Yes | 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 | No | |
Arc'teryx Cerium LT 2020 (Men's - Women's) | 28/-2 | Review | No | No | Yes | 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 | Yes |
Arc'teryx Nuclei (aka FL) (Men's - Women's) | 32/0 | Review | No | No | Yes | 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 | No |
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 | No | |
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 | No | |
Arc'teryx Proton (aka 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 | No |
Patagonia Nano Puff (Men's - Women's) | 37/3 | Review | No | No | Yes | 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 | No |
Arc'teryx Norvan SL Ins. (Men's - Women's) | 39/4 | No | No | Yes | 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 | Yes | |
Patagonia Micro Puff (Men's - Women's) | 41/5 | Review | No | No | Yes | Synthetic | N/A | N/A | N/A | PlumaFill | 65 g | Pertex Quantum | All Round | Regular | 298 g / 10.5 oz | 75 cm / 29.5 in | No |
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 | ? | No |
Arc'teryx Atom (aka 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 | No |
Arc'teryx Cerium Lw. (aka SL) (Men's - Women's) | 43/6 | Review | No | No | Yes | 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 | No |
Arc'teryx Cerium Hybrid (Men's) | 44/7 | No | No | Yes | Down | 850 | 44 | 37,400 | Coreloft | 40 + 100 g/m² | Arato 15 + Fortius Air 50 | All Round | Trim | 260 g / 9.2 oz | 70 cm / 27.5 in | No | |
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 | 76 cm / 30 in | No |
Arc'teryx Proton Lw. (aka FL) (Men's - Women's) | 48/9 | Review | No | No | No | Synthetic | N/A | N/A | N/A | Octa Loft | 94 g/m² | Fortius Air 20 | Climbing | Trim | 343 g / 12.1 oz | 75 cm / 29.5 in | No |
Arc'teryx Atom Lw. (aka 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 | 270 g / 9.5 oz | 72 cm / 28.3 in | No |
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 | No | ||
Arc'teryx Coelle Parka (Women's) | Testing | No | Yes | No | 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 | 95 cm / 37.4 in | No | |
Sabre Insulated (Men's) | Testing | Yes, zips | Yes | No | Synthetic | N/A | N/A | N/A | N/A | Coreloft | 60 + 80 g/m² | Fortius Air 50 | Regular | 535g / 1 lb 2.9 oz | ? | No |
Find the estimated average lowest temperature ratings you can wear each jacket above, assuming:
- you only have a shirt under and no shell over,
- you're walking,
- it's a bit windy and there's no precipitation.
If you think you run warmer or colder than the average person, then shift these ratings accordingly.
Also,
- Always opt for the warmer option when in doubt.
- Ratings will best respond to men's physiology. As most women tend to run colder than men, for women, bumping each rating by 10 - 20 deg F (5 - 10 deg C) is recommended.
- Ratings are applicable to your torso and arms only. In colder weather (below, say, 20 deg F (-6 deg C)), it becomes much harder to keep your hands, feet and head warm rather than your torso and arms.
- This is why getting beanies, gloves and socks are game changers in this regard.
- Further reading:
- CLO values of synthetic insulators: https://outdoorcrunch.com/clo-values/
- Guide to Arc'teryx Jackets: https://outdoorcrunch.com/best-arcteryx-jacket/
- Guide to Patagonia Jackets: https://outdoorcrunch.com/best-patagonia-jackets/
- Also see:
- Arc'teryx Jacket Finder: https://arcteryx.com/us/en/shop/jacket-finder
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.
I hope this post was helpful for you to learn more about the jacket(s) in your mind.
Feel free to ask me any questions or provide feedback and I'll be happy to respond in the comment section below.
Guide: Insulated & Shell Jackets
Start here:
Complete list:
Also see:
Thank you for reading!
Where’s Fission SV fitting in this warmth chart?
Hi Brandon, Fission SV is added to chart.
Because my site is using a cache, you might not be able to see the updated chart when you refresh this page. In that case, try reloading the page through Shift + F5 keyboard shortcut.
Hope this helps.
Where would you put the macro puff hoody in the chart?
Thank you for your comment Benoit! Macro Puff is just added into the chart.
Hi, I was just wondering if/when you may be able to include the new Patagonia DAS Light Hoody and the re-released Patagonia DAS Parka on the charts above..?
Additionally, I noticed that you included the OR Refuge, but any chance that the Refuge Air will be included as well? Just curious.
Thanks!
Hi, I was wondering if you would be able to rank/add Patagonia’s new DAS Light Hoody and re-released DAS Parka to the list…?
Additionally, while you did include the OR Refuge, just out of curiosity, where would the OR Refuge Air sit on the list?
Thanks!
Hi. I’m not seeing wool blend options in this lineup. How would something like Icebreaker’s Stratus (180g merinoloft) compare to down/synthetic as far as warmth?
Hi from spain, first of all thanks for your wonderful page.
Do you know the Outdoor Research Ascendant?
In what temperature range is it?
Like the atom lt?
Thank you!!
Thank you for your comment and kind words Fernando.
I was going to review the Ascendant, but then I couldn’t find the product page of its men’s version at outdoorresearch.com. Seems like the only available option now is women’s counterpart.
Do you know what happened to the men’s version? I contacted the OR about this and now waiting for their response.
There’s an error in your math in the example of Eos versus Transcendent. 141 x 700 is over 98000, much more than what you state, and more than Eos.
Also, if you converted to ounces your calculations would have units of cubic inches rather than some odd cu. In. * Gram / Oz
Otherwise looks like a good resource and looking forward to reading through all this.
Thank you for your comment Alexander!
That’s a great catch, thank you for paying attention to the post. The incorrect numbers of the calculation was actually the “141 x 700”, though. The correct values for the Transcendent are 116 x 650 (source: https://www.outdoorresearch.com/us/mens-transcendent-down-hoodie-268084#eyJvcl9zaXplIjoiNzIifQ__) as mentioned.
The typo is now fixed, but the placements and results stay the same. You might not be able to see the edited version of the page right away. Because my site uses caching, and it might take a few days until it’s purged.
I’ll check out your comments about the units and will make edits accordingly.
Glad you found this post helpful.
Thanks!
Rab has now changed their 750 down in the Microlight Alpine to a 700 totally recycled down. This is from their site:
“Insulation: Recycled 700 fill-power down Nikwax hydrophobic (water-resistant) finish (153g Size L)”
The old jacket was :
“750FP R.D.S Certified European Goose Down (143g/5oz in Size L)”
Thanks for this great information!
Thank you for the depth review. Helps a lot. I hope there is a donation button to appreciate your hard work and researching
Glad it was helpful for you.
Yes, you can this donation button: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=EVA3S7ME6LZB6¤cy_code=USD
I’m flattered, appreciate it, thanks!
I mean great article. This is how everything should be written. As much info as possible.
I’d say the only thing missing is how down fill powder is created/made. I’m very curious how a duck feather can go from 600 to 850fp. Is it a different part of the feather or do they do something to the feather. I would love to see that added to this Article.
Glad to hear it was helpful for you JC.
They don’t do anything to the feather. It’s all natural. In most cases, the difference is mostly due to the genetics of ducks.
I Don, t see anything from the Canada goose line in any list, just wondering why?
Currently I’m on this. Gathering information, analyzing products, etc. They’ll be added soon.
Simply Amazing !
i’ve been hunting and pecking tryying to find this type of information for a purchase(s) and stumbled upon your site.
you have spend a loooooot of time putting this together. the “sales” sites almost never have enough information upon which to make a good decision by making comparisons! it’s been quite frustrating to have to spend hours looking for data like this and the manufacturers aren’t really forthcoming with this data.
Simply Amazing ! thank you so much for all of your work.
i immediately copied it all off in case i don’t find this again.
i forgot to add that it’s time to replace all of my outside gear as it all is 50, or so, years old, and is totally disintegrating. prices have changed in that time ! –it makes me groan when i see the price tags, but it was well worth it, waaay back when, to do research in what i was buying and to obtain the best that i could. this really helps me thru the labryinth of finding what i want.
these next purchases, i figure, will be my last as i’m 68 and probably won’t be around for another 50….but maybe my kids or grandkids can wear what i leave behind. when i got my first gear there were no stores to buy anything in. outside clothing and equipment was not anywhere to be found, at least for someone living in Northern Wisconsin. my first boots came from a garbage can ! they had holes in the bottoms but were warm and rugged ! thanks again.
Amazing research! Thank you. As mentioned above, would be very curious to know where the new Patagonia DAS parka sits, also the Black Diamond Belay (Stance) Parka or whatever they keep renaming it to – definitely interested in the synthetics that push the low temp limits.
Hi Fantastic information and research, thank you, can you add the Rab Valiance please?
Thanks
Jon
Awesome work! Reading this all the way in South Africa. We basically buy one brand nationwide. This helped quite a lot with figuring out what I need. You’re soo technical. It’s inspiring
I’m in awe.
What a great review, so much research..thank you. whilst this lists the minimum temperature the parkas are rated for what is the maximum temperature. Would a 650 rating be good for 5 – 15 degrees Celcius for example
Arc teryx has Agrium on their website now. Where would that sit in the chart?
Hi ! I am super cold natured and usually wear an insulated Carhartt hoodie and thermal jacket in 40 degrees weather. Usually a North Face Nuptse. Can you recommend a good jacket I can wear without having 3 to 4 layers under it. A lot of the times I wear an insulated Carhartt suits bibs and jacket over this. I do wear insulated underwear all winter.
Thank you!
Please add Eddie Bauer Peak XV. (Great value at once a year 60% off sale).
Great work! The trouble is that many of the selections you have listed are not available. Very disappointing because I get all excited then I can’t get one. I suppose it’s lots of work to keep up with the market and remove pieces that go out of production.
thanks for your work!
Very informative article, but you missed off one of the main factors that affect the warmth of a down jacket…construction!
3 identical jackets, with the same face fabric, fill weight and fill power, will not be the same warmth depending on construction. If one is stitch-through, one box wall and one is over lapping baffles, then the warmth (and cost) will vary.
This is why jackets like the Berghaus Ramche 2 down jacket (my favourite jacket I own) weighing 456 grams with only 183g of 850fp down is rated to minus 20 / minus 25 degrees C, as it has overlapping insulation meaning it is much warmer than heavier, higher fill weight jackets.
Construction is one of the key things I look for as it is a better indicator of warmth than FW x FP alone.
That aside, some very informative and detailed descriptions and analysis.
Hi,
RESPECT for a detailed research and review. Stumbled upon this while researching for jackets.
I have a question if I may, for synthetic jackets I see that the least temp for sameg/m2 isn’t the same for jackets with coreloft(arc tryx kappa) vs. those thermatek (arc tryx Dually). is this a case of one tech being better than other or is it a function of the overall jacket build?
In corollary, can it be assumed that jackets with same g/m2 ratings would be equally warm irrespective of technology?
Hi Murali,
Thank you.
Good question. The difference is actually caused by a combination of both of the reasons you mentioned – tech differences and overall jacket build (mostly the nature of face fabrics).
Hi, thanks a lot for the comprehensive testing/analyses. Would you mind adding Mountain Hardwear or Mammut insulation jackets? They are also regarded as high quality products (especially the EigerExtreme line)
Hello. Thank you so much for sharing this amount of information. I don’t see in this list some Scandinavian or other European outdoor clothing brands (except RAB). When possible, can you review some of these? I don’t have any versus American brands. I had a Tommy Hilfinger and PME Legend jacket (both stolen in a discotheque), and I’m planning to buy a new jacket: I like Patagonia, Marmut, Columbia (who has acquired Mountain Hardware), The North Face and others; but some Nordic brands are great, too. For example, Fjallraven makes his own products instead of using Gore-tex etc. Sorry for my English, I’m Italian.
Thanks Francesco. I’ll take your comments into consideration and see what I can do. Great to hear you found my site helpful.
medium sized cerium lt has 102g 850 power fill down with Arato 10 face fabric. kole has 72g 750 power fill with 20D nylon. why temperature chart of cerium is -2* and kole is -12*? and how about agrium which has 117g 850 power fill down with Arato 15 fabric? thank you.
Hi James,
As I explained earlier into the article, this difference is caused by additional synthetic insulator use.
Best,
C
Thanks for this great information. As a hiker who lives in the southeastern US (and not in, say, Jackson Hole), I struggle to know how to make adjustments from reviews often written for more aerobic activities in colder climates. Note: Almost exactly half the US population lives south of about 37° latitude, roughly the line from the North Carolina-Virginia border, across northern Oklahoma, to central California (about Fresno). While some of us head to New England or Colorado for winter skiing, lots of others are just trying to figure out how to stay comfortably warm while active in the outdoors nearer home.) The information on your site helps.
I noticed that your temperature ratings no longer include the Outdoor Research Refuge or Transcendent (and perhaps others). I assume this is because OR is no longer making these two jackets. I’d like to encourage you to keep orphan items in your list for a bit longer. Outdoor gear sites are still selling these jackets new, and lots of us with limited means look for good used gear online, so it would be helpful to keep archived data In your rankings for a few years (or start a third table for discontinued items?). Thanks.
About down insulation you’d to consider other elements and in particolar the ratio between down and feathers and the baffle construction.
Higher percentage of down mean more warmth. The right calculation should be fill power x fill weight x ratio between down and feathers. For example, Feathered Friends Rock and Ice parka, in size medium, has 20,5 oz, fill down 900, ratio 0,96 (96% down 4% feathers), Rab expedition 8000 m jacket has, in size medium, 19 oz of down 850, with a ratio of 0,90.
Another important element is the baffle construction: a box baffle jacket is far warmer than a serena through jacket with the same fill power and fill weight. The construction is important also for synthetic cloths because stitch through cause cold spot.
The least but not the last, the material of the outer layer and the type of insulation. Some are waterproof and windproof, others are water resistant and windproof, others water and wind resistant, others more breathable and only slightly wind resistant, like the patagonia nano air or the arc’teryx atom. Matetials like fullrange and polartec alpha are very permeable to wind