Y'all know this is just my opinion... right?
Name Est. Temp (F/C) Breathability Wind Res. Abrasion res. Packability Best pick for Review Pit venting? Two way zipper? Stuffs into itself? Type Fill Power (in3/oz) Fill Weight (g) Fill Volume (in3) Synthetic Fill Synth. Fill Weight Face Fabric Activity Fit Weight Length (CB) Internal pockets External pockets sentences
Arc'teryx Alpha Parka (Men's - Women's) -18/-28 No data No data No data No data Warmest Arc'teryx jacket. Review No Yes Yes Down 850 296 8,875 Coreloft 90 g/m² N30r 2L GoreTex Infinium Climbing Regular 805 g / 1 lb 12.4 oz 86 cm / 34 in No bestdownjackets Fill weight of Arc'teryx Alpha Parka (Men's - Women's) is 296 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 8875 cubic inches of down fill volume. It's also reinforced with 90 g/m² of Coreloft.
Arc'teryx Alpha Lightweight (Men's - Women's) 5/-15 No data No data No data No data No Yes Yes Down 850 117 3,508 Coreloft Compact 40 g/m² Hadron 2L Gore-Tex Infinium Climbing Regular 540 g / 1 lb 3 oz 79.5 cm / 31.25 in No bestdownjackets Fill weight of Arc'teryx Alpha Lightweight (Men's - Women's) is 117 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 3508 cubic inches of down fill volume. It's also reinforced with 40 g/m² of Coreloft Compact.
Arc'teryx Atom (aka LT) ( Men's - Women's) 43/6 9/10 6/10 7/10 5/10 High output activities. 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 atomproton bestsyntheticjackets 1x chest - Arc'teryx Atom (aka LT) ( Men's - Women's) is equipped with 60 g/m² of Coreloft Continuous.
Arc'teryx Atom Heavyweight (aka AR) (Men's - Women's) 18/-8 4/10 8/10 8/10 3/10 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 atomproton bestsyntheticjackets 1x chest - Arc'teryx Atom Heavyweight (aka AR) (Men's - Women's) is equipped with 120 g/m2 + 80 g/m2 + 60 g/m2 of Coreloft Continuous.
Arc'teryx Atom Lightweight (aka SL) (Men's - Women's) 52/11 10/10 2/10 7/10 6/10 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 atomproton bestsyntheticjackets - - Arc'teryx Atom Lightweight (aka SL) (Men's - Women's) is equipped with 40 g/m² of Coreloft Compact.
Arc'teryx Beta Down Insulated (Men's) 0/-18 No data No data No data No data Yes Yes No Parka 850 126 3,778 Coreloft 80 g/m² 2L 40D Gore-Tex All Round Regular 760 g / 1 lb 10.8 oz 79 cm / 31 in No bestdownjackets Fill weight of Arc'teryx Beta Down Insulated (Men's) is 126 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 3778 cubic inches of down fill volume. It's also reinforced with 80 g/m² of Coreloft.
Arc'teryx Beta Insulated (Men's) 21/-6 No data No data No data No data Review Yes, zips Yes No Parka 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 bestdownjackets Arc'teryx Beta Insulated (Men's) is equipped with 80 g/m² of Coreloft Continuous.
Arc'teryx Beta Insulated Coat (Women's) 16/-9 No data No data No data Testing Review No Yes No Parka 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 86 cm / 34 in No bestdownjackets Arc'teryx Beta Insulated Coat (Women's) is equipped with 80 g/m² + 120 g/m² of Coreloft .
Arc'teryx Cerium (aka LT) (Men's - Women's) 26/-3 No data No data No data No data Light down jacket. Review No No Yes Down 850 113 3,388 Coreloft 80 + 100 g/m² Arato 15 All Round Trim 335 g / 11.8 oz 72 cm / 28.3 in No bestdownjackets Fill weight of Arc'teryx Cerium (aka LT) (Men's - Women's) is 113 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 3388 cubic inches of down fill volume. It's also reinforced with 80 + 100 g/m² of Coreloft.
Arc'teryx Cerium Hybrid (Women's) 44/7 No data No data No data No data No No Yes Down 850 44 1,319 Coreloft 40 + 100 g/m² Arato 15 + Fortius Air 50 All Round Trim 260 g / 9.2 oz 70 cm / 27.5 in No bestdownjackets #REF!
Arc'teryx Coelle (Women's) 14/-10 No data No data No data No data No Yes No Parka N/A N/A N/A Coreloft 98 g/m² 40D 2L Gore-Tex Around Town Regular 435g / 15.3 oz 70 cm / 27.5 in No Arc'teryx Cerium Hybrid (Women's) is equipped with 98 g/m² of Coreloft.
Arc'teryx Liatris (Women's) 5/-15 No data No data No data No data No No No Parka 850 93 2,788 Climashield 80 g/m2 + 60 g/m2 70D 3L Gore-Tex Around Town Regular 890 g / 1 lb 15.4 oz 75 cm / 29.5 in No Fill weight of Arc'teryx Liatris (Women's) is 93 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 2788 cubic inches of down fill volume. It's also reinforced with 80 g/m2 + 60 g/m2 of Climashield.
Arc'teryx Liatris Parka (Women's) 2/-17 No data No data No data No data No No No Parka 850 136 4,078 Climashield 80 g/m2 + 60 g/m2 70D 3L Gore-Tex Around Town Regular 1.093 kg / 2 lb 6.6 oz 109 cm / 43 in No Fill weight of Arc'teryx Liatris Parka (Women's) is 136 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 4078 cubic inches of down fill volume. It's also reinforced with 80 g/m2 + 60 g/m2 of Climashield.
Arc'teryx Nuclei (aka FL) ( Men's - Women's) 32/0 2/10 9/10 2/10 10/10 Review No No Yes Synthetic N/A N/A N/A Coreloft Continuous 65 g/m² Arato 10r All Round Regular 325 g / 11.5 oz 75 cm / 29.5 in No nucleiproton bestsyntheticjackets 2x dump - Arc'teryx Nuclei (aka FL) ( Men's - Women's) is equipped with 65 g/m² of Coreloft Continuous.
Arc'teryx Nuclei SV (Women's) 5/-15 1/10 10/10 2/10 8/10 Warmest belay jacket. Review No Yes Yes Synthetic N/A N/A N/A Coreloft Continuous 190 g/m2 + 90 g/m2 Arato 15 All Round Regular 600 g / 1 lb 5.2 oz 81 cm / 31.8 in No nucleiproton bestsyntheticjackets 2x dump 1x chest Arc'teryx Nuclei SV (Women's) is equipped with 190 g/m2 + 90 g/m2 of Coreloft Continuous.
Arc'teryx Patera (Women's) 21/-6 No data No data No data No data Review No Yes No Parka 750 67 1,773 Coreloft 60 + 80 g/m² 2L Gore-Tex Around Town Trim 867 g / 1 lb 14.6 oz 99 cm / 39 in No Fill weight of Arc'teryx Patera (Women's) is 67 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 1773 cubic inches of down fill volume. It's also reinforced with 60 + 80 g/m² of Coreloft.
Arc'teryx Patera Long (Women's) 0/-18 No data No data No data No data Women's warmest parka. No Yes No Parka 750 204 5,397 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 Fill weight of Arc'teryx Patera Long (Women's) is 204 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 5397 cubic inches of down fill volume. It's also reinforced with 60 + 80 g/m² of Coreloft.
Arc'teryx Proton Lightweight (aka FL) (Men's - Women's) 48/9 8/10 4/10 7/10 6/10 Chilly summer mornings. 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 atomproton nucleiproton bestsyntheticjackets - 1x chest Arc'teryx Proton Lightweight (aka FL) (Men's - Women's) is equipped with 94 g/m² of Octa Loft.
Arc'teryx Therme Parka (Men's) 5/-15 No data No data No data No data Review No Yes No Parka 750 120 3,175 Coreloft 60 + 80 g/m² P75d Polyester Around Town Regular 991 g / 2 lb 3 oz 85 cm / 33.5 in No Fill weight of Arc'teryx Therme Parka (Men's) is 120 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 3175 cubic inches of down fill volume. It's also reinforced with 60 + 80 g/m² of Coreloft.
Arc'teryx Therme SV (Men's) -11/-24 No data No data No data No data Men's warmest parka. Review No Yes No Parka 750 211 5,582 Coreloft 60 g/m² 2L Gore-Tex Around Town Regular 1.072 kg / 2 lb 5.8 oz 96 cm / 37.75 in No Fill weight of Arc'teryx Therme SV (Men's) is 211 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 5582 cubic inches of down fill volume. It's also reinforced with 60 g/m² of Coreloft.
Arc'teryx Thorium ( Men's - Women's) 12/-11 No data No data No data No data Warm down jacket. Review No Yes Yes Down 750 140 3,704 Coreloft 80 + 140 g/m² Arato 30 All Round Regular 517 g / 1 lb 2.2 oz 71.5 cm / 28.1 in No bestdownjackets Fill weight of Arc'teryx Thorium ( Men's - Women's) is 140 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 3704 cubic inches of down fill volume. It's also reinforced with 80 + 140 g/m² of Coreloft.
Arc'teryx Thorium Parka (Women's) -2/-19 No data No data No data No data Review No Yes No Down 750 209 5,529 Coreloft 80 + 140 g/m² Arato 20 Around Town Regular 610 g / 1 lb 5.5 oz 115.8 cm / 45.6 in No bestdownjackets Fill weight of Arc'teryx Thorium Parka (Women's) is 209 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 5529 cubic inches of down fill volume. It's also reinforced with 80 + 140 g/m² of Coreloft.
Arc'teryx Thorium SV (Men's) 3/-16 No data No data No data No data Gore-Tex down jacket. No Yes Yes Down 750 169 4,471 Coreloft 80 + 140 g/m² Arato 30 & 2L Gore-Tex Infinium Around Town Regular 645 g / 1 lb 6.8 oz 73 cm / 28.75 in No bestdownjackets Fill weight of Arc'teryx Thorium SV (Men's) is 169 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 4471 cubic inches of down fill volume. It's also reinforced with 80 + 140 g/m² of Coreloft.
Arc'teryx Thorium SV Parka (Men's) 0/-18 No data No data No data No data No Yes No Down 750 195 5,159 Coreloft 80 + 140 g/m² Arato 30 & 2L Gore-Tex Infinium Around Town Regular 685 g / 1 lb 8.2 oz 85 cm / 33.5 in No bestdownjackets Fill weight of Arc'teryx Thorium SV Parka (Men's) is 195 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 5159 cubic inches of down fill volume. It's also reinforced with 80 + 140 g/m² of Coreloft.
Black Diamond Access Down (Men's - Women's) 7/-14 No data No data No data No data No Yes Yes Down 700 155 3,827 N/A N/A 30D ripstop nylon All Round Regular 442 g / 15.6 oz 76 cm / 29.75 in No bestdownjackets Fill weight of Black Diamond Access Down (Men's - Women's) is 155 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 3827 cubic inches of down fill volume.
Feathered Friends Eos(Men's - Women's) 8/-13 No data No data No data No data No No Yes Down 900 105 3,333 N/A N/A Pertex Quantum All Round Regular 306 g / 10.8 oz ? No bestdownjackets Fill weight of Feathered Friends Eos(Men's - Women's) is 105 grams. Its fill power is 900 cubic inches per ounce, which equals to a total of 3333 cubic inches of down fill volume.
Feathered Friends Khumbu (Men's) -17/-27 No data No data No data No data No No Yes Down 900 378 12,000 Primaloft Gold 200 g Pretex Shield XT All Round Regular 960 g / 2 lb 2 oz ? No bestdownjackets Fill weight of Feathered Friends Khumbu (Men's) is 378 grams. Its fill power is 900 cubic inches per ounce, which equals to a total of 12000 cubic inches of down fill volume. It's also reinforced with 200 g of Primaloft Gold.
Mountain Equipment Exo (Men's) -10/-23 No data No data No data No data No Yes Yes Down 800 265 7,478 N/A N/A Nylon All Round Regular 770 g / 1 lb 11.2 oz 79 cm / 31 in No bestdownjackets Fill weight of Mountain Equipment Exo (Men's) is 265 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 7478 cubic inches of down fill volume.
Mountain Equipment K7 (Men's) -13/-25 No data No data No data No data No Yes Yes Down 800 300 8,466 N/A N/A 30D Drilite All Round Regular 820 g / 1 lb 13 oz 76 cm / 30 in No bestdownjackets Fill weight of Mountain Equipment K7 (Men's) is 300 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 8466 cubic inches of down fill volume.
Mountain Hardwear GW/2 (Men's - Women's) 28/-2 No data No data No data No data No No Yes Down 800 85 2,399 N/A N/A 10D Ripstop Nylon All Round Trim 250 g / 8.8 oz 70 cm / 27.5 in No bestdownjackets Fill weight of Mountain Hardwear GW/2 (Men's - Women's) is 85 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 2399 cubic inches of down fill volume.
Outdoor Research Sup. Alp. (Men's - Women's) 3/-16 No data No data No data No data No Yes No Down 800 182 5,136 N/A N/A 30D Pertex Quantum Pro All Round Regular 825 g / 1 lb 13.1 oz 85 cm / 33.5 in No bestdownjackets Fill weight of Outdoor Research Sup. Alp. (Men's - Women's) is 182 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 5136 cubic inches of down fill volume.
Patagonia AlpLight (Men's - Women's) 36/2 No data No data No data No data No No Yes Down 800 100 2,822 N/A N/A 0.8 oz 10D polyester All Round Slim 270 g / 9.5 oz 74 cm / 29 in No bestdownjackets Fill weight of Patagonia AlpLight (Men's - Women's) is 100 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 2822 cubic inches of down fill volume.
Patagonia AlpLoft (Men's) -10/-23 No data No data No data No data No Yes Yes Down 800 295 8,325 N/A N/A Pertex Quantom All Round Regular 680 g / 1 lb 8 oz 81 cm / 31.8 in No bestdownjackets Fill weight of Patagonia AlpLoft (Men's) is 295 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 8325 cubic inches of down fill volume.
Patagonia DAS (Men's - Women's) 10/-12 1/10 9/10 3/10 6/10 Review No Yes Yes Synthetic N/A N/A N/A PrimaLoft Gold Insulation Eco 133 + 40 g Pertex Quantum Pro All Round Regular 555 g / 1 lb 3.6 oz 84 cm / 33 in No bestsyntheticjackets 2x dump 1x chest Patagonia DAS (Men's - Women's) is equipped with 133 + 40 g of PrimaLoft Gold Insulation Eco.
Patagonia DAS Light(Men's) 34/1 2/10 8/10 2/10 9/10 Review No Yes Yes Synthetic N/A N/A N/A PlumaFill 65 g 10D Pertex Quantum Pro All Round Regular 320 g / 11.3 oz 77 cm / 30.5 in No bestsyntheticjackets - 1x chest Patagonia DAS Light(Men's) is equipped with 65 g of PlumaFill.
Patagonia Down Sweater (Men's - Women's) 23/-5 No data 4/10 6/10 7/10 Review No No Yes Down 800 150 4,233 N/A N/A 1.4 oz 20x30D polyester All Round Regular 428 g / 15.1 oz 67 cm / 26.25 in No bestdownjackets Fill weight of Patagonia Down Sweater (Men's - Women's) is 150 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 4233 cubic inches of down fill volume.
Patagonia Downdrift (Men's - Women's) 18/-8 No data No data No data No data No No No Down 600 279 5,905 N/A N/A 4.2 oz polyester Around Town Regular 1.014 kg / 2 lb 3.8 oz ? No bestdownjackets Fill weight of Patagonia Downdrift (Men's - Women's) is 279 grams. Its fill power is 600 cubic inches per ounce, which equals to a total of 5905 cubic inches of down fill volume.
Patagonia Fitz Roy (Men's - Women's) 14/-10 No data No data No data No data No No Yes Down 800 128 3,612 N/A N/A 20D Nylon All Round Regular 632 g / 1lb 6.3 oz 74 cm / 29 in No bestdownjackets Fill weight of Patagonia Fitz Roy (Men's - Women's) is 128 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 3612 cubic inches of down fill volume.
Patagonia Isthmus (Men's) 36/2 No data No data No data No data 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 Patagonia Isthmus (Men's) is equipped with 60 g of ThermoGreen.
Patagonia Jackson Glacier (Men's - Women's) 12/-11 No data No data No data No data Review No Yes No Down 700 141 3,482 N/A N/A 3.6 oz 50D polyester Around Town Regular 880 g / 1 lb 15 oz 79 cm / 31 in No bestdownjackets Fill weight of Patagonia Jackson Glacier (Men's - Women's) is 141 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 3482 cubic inches of down fill volume.
Patagonia Jackson Glacier Parks ( Women's) 7/-14 No data No data No data No data No No No Parka 700 218 5,383 N/A N/A 50D Polyester Around Town Regular 1.142 kg / 2 lb 8.3 oz ? No Fill weight of Patagonia Jackson Glacier Parks ( Women's) is 218 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 5383 cubic inches of down fill volume.
Patagonia Micro Puff (Men's - Women's) 37/3 5/10 6/10 5/10 8/10 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 bestsyntheticjackets 2x dump - Patagonia Micro Puff (Men's - Women's) is equipped with 65 g of PlumaFill.
Patagonia Nano Air (Men's - Women's) 39/4 7/10 5/10 5/10 8/10 Review No No Yes Synthetic N/A N/A N/A FullRange 60 g 33D nylon ripstop All Round Trim 401 g / 14.14 oz ? No bestsyntheticjackets - 2x chest Patagonia Nano Air (Men's - Women's) is equipped with 60 g of FullRange.
Patagonia Nano Air Light Hybrid (Men's - Women's) 50/10 No data No data No data No data No No No Synthetic N/A N/A N/A FullRange 40 g 20D nylon ripstop All Round Trim 335 g / 11.8 oz ? No Patagonia Nano Air Light Hybrid (Men's - Women's) is equipped with 40 g of FullRange.
Patagonia Nano Puff (Men's - Women's) 41/5 4/10 6/10 6/10 8/10 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 bestsyntheticjackets 1x chest - Patagonia Nano Puff (Men's - Women's) is equipped with 60 g of PrimaLoft Gold Insulation Eco.
Patagonia Silent Down (Men's - Women's) 26/-3 No data No data No data No data Review No No No Down 700 109 2,691 N/A N/A 2.2 oz polyester Around Town Regular 585 g / 1 lb 4.7 oz 74 cm / 29 in No bestdownjackets Fill weight of Patagonia Silent Down (Men's - Women's) is 109 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 2691 cubic inches of down fill volume.
Patagonia Stormshadow (Men's) 0/-18 No data No data No data No data No No No Parka 700 259 6,395 N/A N/A 75D Polyester Around Town Regular 1.182 kg / 2 lb 9.7 oz ? No Fill weight of Patagonia Stormshadow (Men's) is 259 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 6395 cubic inches of down fill volume.
Patagonia Tres 3-in-1Patagonia Tres 3-in-1 (Men's - Women's) 8/-13 No data No data No data No data Review No No No Parka 700 118 2,914 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 Fill weight of Patagonia Tres 3-in-1Patagonia Tres 3-in-1 (Men's - Women's) is 118 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 2914 cubic inches of down fill volume.
Patagonia Vosque 3-in-1 (Women's) 10/-12 No data No data No data No data 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 Vosque 3-in-1 (Women's) is equipped with 100 g of ThermoLite.
Rab Electron Pro (Men's - Women's) 5/-15 No data No data No data No data No Yes Yes Down 800 180 5,079 N/A N/A 20D Pertex Quantum Pro All Round Regular 525 g / 1 lb 2.5 oz 74 cm / 29 in No bestdownjackets Fill weight of Rab Electron Pro (Men's - Women's) is 180 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 5079 cubic inches of down fill volume.
Rab Infinity Alpine (Men's) 5/-15 No data No data No data No data No Yes Yes Down 800 175 4,938 N/A N/A 30D & 13D Gore-Tex Infinium All Round Regular 551 g / 1 lb 3.4 oz 76.5 cm / 30.1 in No bestdownjackets Fill weight of Rab Infinity Alpine (Men's) is 175 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 4938 cubic inches of down fill volume.
Rab Infinity Microlight (Men's - Women's) 19/-7 No data No data No data No data No No Yes Down 700 146 3,605 N/A N/A 13D Gore-Tex Infinium All Round Regular 452 g / 15.9 oz 74 cm / 29.1 in No bestdownjackets Fill weight of Rab Infinity Microlight (Men's - Women's) is 146 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 3605 cubic inches of down fill volume.
Rab Microlight Alpine (Men's - Women's) 7/-14 No data No data No data No data No No Yes Down 700 153 3,778 N/A N/A 30D Pertex Quantum All Round Regular 466 g / 1 lb 0.5 oz 72 cm / 28.5 in No bestdownjackets Fill weight of Rab Microlight Alpine (Men's - Women's) is 153 grams. Its fill power is 700 cubic inches per ounce, which equals to a total of 3778 cubic inches of down fill volume.
Rab Neutrino Pro (Men's - Women's) -2/-19 No data No data No data No data No Yes Yes Down 800 212 5,982 N/A N/A 20D Pertex Quantum Pro All Round Regular 585 g / 1 lb 8.6 oz 77 cm / 30.3 in No bestdownjackets Fill weight of Rab Neutrino Pro (Men's - Women's) is 212 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 5982 cubic inches of down fill volume.
Rab Positron Pro (Men's) -13/-25 No data No data No data No data No Yes Yes Down 800 300 8,466 N/A N/A 40D Pertex Quantum Pro All Round Regular 740 g / 1 lb 10 oz 85 cm / 33.5 in No bestdownjackets Fill weight of Rab Positron Pro (Men's) is 300 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 8466 cubic inches of down fill volume.
REI Magma 850 Hoodie 2.0 (Men's - Women's) 14/-10 No data No data No data No data No No Yes Down 850 120 3,598 N/A N/A Pertex mini ripstop nylon All Round Regular 340 g / 13.75 oz 74 cm / 29.25 in No bestdownjackets Fill weight of REI Magma 850 Hoodie 2.0 (Men's - Women's) is 120 grams. Its fill power is 850 cubic inches per ounce, which equals to a total of 3598 cubic inches of down fill volume.
I've got the most recent (Winter 2024) models of all 3.
These are the product pages of the most recent revisions:
- https://arcteryx.com/us/en/shop/mens/proton-hoody
- https://arcteryx.com/us/en/shop/mens/atom-hoody
- https://arcteryx.com/us/en/shop/womens/proton-hoody
- https://arcteryx.com/us/en/shop/womens/atom-hoody
- https://www.patagonia.com/product/mens-nano-air-insulated-hoody/84367.html
- https://www.patagonia.com/product/womens-nano-air-insulated-hoody/84268.html
Summary
My take is that these products are much more similar than they're different. The differences in things like warmth and breathability might not even be noticeable to you.
Because of superior abrasion resistance capability of Proton (aka LT), I think that it's mostly the better pick for climbing and skiing in not-so-cold-but-still-chilly days. Also better resists against a heavy backpack.
Atom (aka LT), on the other hand, is mostly the best choice for maximized breathability (side fleece panels). It also has the highest capability hood of all these (StormHood).
Nano Air (the most recent 2024 version) is the best if you need packability, if you dislike elastic cuffs and/or if you have long arms.
Like I said, however... These differences are small, man. That's why I don't see anything wrong in prioritizing the looks over anything else.
Warmth
Warmth difference isn't really noticeable.
Performance data axis of synthetic jackets (table above) and shell jackets (this table) are different. Don't compare them.
Name Activity Temp (F/C) Breathability Weather Res. Durability Bottom line Review Pit zips? Two way zipper? Stuffs into itself? Face Fabric Fit Weight Length Alpha (aka AR) (Men's - Women's) Climbing N/A 8/10 9/10 8/10 4/10 Go-to climbing harshell. Review Yes No No N40d & N80d Most Rugged 3L Gore-Tex Pro Regular 430 g / 15.2 oz 79.5 cm / 31.25 in No Alpha SV (Men's - Women's) Climbing N/A 8/10 10/10 10/10 3/10 Strongest climbing hardshell. Review Yes No No N100d Most Rugged 3L Gore-Tex Pro Regular 510 g / 1 lb 2 oz 78 cm / 30.75 in No Beta (Men's - Women's) All Round N/A 6/10 7/10 7/10 8/10 Streamlined all-doer shell. Review No No No N30p-X 3L Gore-Tex Trim 300 g / 10.6 oz 76 cm / 30 in No Beta AR (Men's - Women's) All Round N/A 8/10 9/10 9/10 4/10 Go-to all-round harshell. Review Yes No No N40d & N80d Most Rugged 3L Gore-Tex Pro Regular 460 g / 1 lb 76 cm / 30 in No Beta AR StormHood (Men's - Women's) All Round N/A 8/10 9/10 9/10 4/10 Review Yes No No N40d & N80d Most Rugged 3L Gore-Tex Pro Regular 460 g / 1 lb 76 cm / 30 in No Beta Coat (Women's) All Round N/A 6/10 5/10 No data 5/10 No Yes No 3L Gore-Tex Regular 320 g / 11.3 oz 88 cm / 34.5 in No Beta Down Insulated (Men's) All Round 0/-18 9/10 7/10 8/10 No data Yes Yes No 2L 40D Gore-Tex Regular 760 g / 1 lb 10.8 oz 79 cm / 31 in No Beta Insulated (Men's - Women's) All Round 21/-6 9/10 7/10 8/10 No data Go-to hybrid jacket. Review Yes Yes No N40d 2L Gore-Tex Regular 680 g / 1 lb 8 oz 78.5 cm / 31 in No Beta Insulated Coat (Women's) All Round 16/-9 7/10 No data No data No data No Yes No N40d 2L Gore-Tex Regular 600 g / 1 lb 5.2 oz 86 cm / 34 in No Beta Lightweight (Men's - Women's) All Round N/A 8/10 7/10 7/10 6/10 Review Yes No No N40p 3L Gore-Tex Fitted 380 g / 13.4 oz 75 cm / 29.5 in No Beta LT (Men's - Women's) All Round N/A 7/10 7/10 8/10 6/10 Review Yes No No N40d 3L Gore-Tex Fitted 395 g / 13.9 oz 76 cm / 30 in No Gamma (aka LT) (Men's - Women's) All Round N/A 7/10 3/10 7/10 3/10 Go-to softshell. Review No No No Wee Burly Double Weave Regular 545 g / 1 lb 3.2 oz 76 cm / 30 in No Gamma MX (Men's) All Round N/A 6/10 4/10 8/10 3/10 Strongest softshell. Review No No No Fortius 2.0 Regular 555 g / 1 lb 3.6 oz 74 cm / 29.1 in No Norvan Shell (Men's) Running N/A No data No data No data No data No No No 13D 3L Gore-Tex Trim 190 g / 6.7 oz 73 cm / 28.75 in No Rush (Women's) Skiing N/A 8/10 9/10 9/10 3/10 Go-to ski jacket. Review Yes No No N80p-X & N100p-X 3L Most Rugged Gore-Tex Pro Regular 590 g / 1 lb 4.8 oz 79.5 cm / 31.25 in No Rush Insulated (Women's) Skiing 16/-9 3/10 5/10 5/10 9/10 Review No No Yes Hadron 2L Gore-Tex Infinium Regular 515 g / 1 lb 2.2 oz 79 cm / 31 in Yes Sabre (Men's) Skiing N/A 8/10 8/10 7/10 2/10 Review Yes No No N80p-X 3L Gore-Tex Regular 705 g / 1 lb 8.9 oz 79 cm / 31 in No Sentinel (Women's) Skiing N/A 8/10 7/10 7/10 2/10 Go-to ski jacket. Review Yes No No N70p 3L Gore-Tex Regular 640 g / 1 lb 6.6 oz 73.7 cm / 29 in No Sentinel Insulated (Women's) Skiing 21/-6 8/10 No data No data No data Review Yes No No N80p 2L Gore-Tex Regular 600 g / 1 lb 5.2 oz 79.8 cm / 31.5 in No Sentinel Relaxed (Women's) Skiing N/A No data No data No data No data Yes No No N80p 3L Gore-Tex Regular 655 g / 1 lb 7.1 oz ? No Sidewinder (Women's) Skiing N/A 8/10 8/10 7/10 2/10 Yes No No N80p 3L Gore-Tex Regular 570 g / 1 lb 4.1 oz ? No Solano (Men's - Women's) Around Town N/A No data No data No data No data Review No No No Gore-Tex Infinium Relaxed 355 g / 12.5 oz 72 cm / 28.3 in No Squamish (Men's - Women's) Running N/A 5/10 4/10 7/10 9/10 Go-to running jacket. Review No No Yes 30D Tyono Trim 140 g / 4.9 oz 77.5 cm / 30.5 in No Theriss Down (Women's) Skiing No data 7/10 6/10 7/10 2/10 Review Yes No No N80p 2L Gore-Tex Regular 709 g / 1 lb 9 oz 63 cm / 24.8 in No Alpha FL (Men's - Women's) Climbing N/A 7/10 No data No data 10/10 No No Yes Hadron 3L Gore-Tex Trim 209 g / 7.4 oz 76.5 cm / 30 in Yes Alpha IS (Men's) Climbing 23/-5 7/10 5/10 No data 8/10 No Yes Yes N40p-X 2L Gore-Tex Regular 610 g / 1 lb 5.5 oz 78 cm / 30.75 in Yes Alpha SL (Men's - Women's) Climbing N/A 5/10 7/10 No data 9/10 No No Yes N40p 3L Gore-Tex Trim 326 g / 11.5 oz 77.5 cm / 30.5 in Yes Beta SV (Men's - Women's) All Round N/A 8/10 10/10 10/10 3/10 Strongest all-round harshell. Review Yes No No N80p-X Most Rugged 3L Gore-Tex Pro Regular 495 g / 1 lb 1.5 oz 79 cm / 31 in Yes Gamma SL (aka lightweight) (Men's - Women's) All Round N/A 7/10 2/10 6/10 5/10 Review No No No Fortius 1.0 Trim 310 g / 10.9 oz 74 cm / 29.1 in Yes Incendia (Women's) Skiing N/A 8/10 9/10 9/10 3/10 Review Yes No No NP100d 3L Gore-Tex Trim 610 g / 1 lb 5.5 oz 79 cm / 31 in Yes Incendo (Men's) Running N/A 7/10 4/10 5/10 10/10 Review No No Yes Lumin Trim 125 g / 4.4 oz ? Yes Incendo Airshell (Men's Running N/A No data No data No data No data No No Yes ? Trim 105 g / 3.7 oz ? Yes Incendo SL (Men's) Running N/A 7/10 4/10 4/10 10/10 Review No No Yes Permair 20 & Canim Trim 80 g / 2.8 oz 73 cm / 28.75 in Yes Macai (Men's) Skiing 5/-15 7/10 7/10 6/10 1/10 Review Yes No No N40p-X 3L Gore-Tex Regular 990 g / 2 lb 2.9 oz 75 cm / 29.5 in Yes Macai Lightweight (aka LT) (Men's) Skiing 8/-13 7/10 7/10 6/10 2/10 Review Yes No No N40p-X 3L Gore-Tex Regular 855 g / 1 lb 14.2 oz ? Yes Macai Shell (Men's) Skiing N/A No data No data No data No data Review Yes No No N80p-X 3L Gore-Tex Regular 775 g / 1 lb 11.3 oz ? Yes Micon (Men's) Skiing N/A No data No data No data No data Yes No No N80p 3L Gore-Tex Regular 685 g / 1 lb 8.2 oz 83 cm / 32.5 in Yes Micon Heather Skiing N/A No data No data No data No data Yes No No NP100-d 3L Gore-Tex Regular 685 g / 1 lb 8.2 oz 83 cm / 32.5 in Yes Nodin (Men's - Women's) Running N/A 8/10 5/10 5/10 10/10 No No Yes 20D Tyono Trim 130 g / 4.6 oz 75 cm / 29.5 in Yes Norvan LT (Men's - Women's) Running N/A 5/10 5/10 8/10 6/10 No No No N13p 3L Gore-Tex Trim 190 g / 6.7 oz ? Yes Norvan SL (Men's - Women's) Running N/A 7/10 6/10 8/10 8/10 Review No No Yes Gore-Tex Infinium Trim 120 g / 4.2 oz 77 cm / 30.4 in Yes Norvan SL Ins. (Women's) Running 39/4 No data No data No data No data No No Yes Gore-Tex ShakeDry Trim 270 g / 9.5 oz 71.5 cm / 28.1 in Yes Norvan Windshell (Men's Running N/A No data No data No data No data No No Yes Permeair 20 Trim 90 g / 3.2 oz 73 cm / 28.75 in Yes Procline (Men's) Skiing N/A No data No data No data No data Yes No No N70p Gore-Tex Infinium Trim 720 g / 1 lb 9.4 oz 76 cm / 30 in Yes Ravenna (Women's) Skiing N/A 8/10 7/10 8/10 3/10 Review Yes No No N70s-4 3L Gore-Tex Trim 725 g / 1 lb 9.6 oz 69.5 cm / 27.4 in Yes Ravenna LT (Women's) Skiing N/A 6/10 6/10 6/10 5/10 Review Yes No No N70p 3L Gore-Tex Trim 540 g / 1 lb 3 oz 69 cm / 27.2 in Yes Sabre AR (Men's) Skiing N/A 7/10 8/10 7/10 7/10 Review Yes No No N70p 3L Gore-Tex Regular 700 g / 1 lb 8.7 oz 79 cm / 31 in Yes Sabre Insulated (See related products) Skiing No data 7/10 No data 6/10 No data Review Yes No No N80p 2L Gore-Tex Regular 815 g / 1 lb 12.7 oz 76 cm / 30 in Yes Sabre LT (Men's) Skiing N/A 7/10 8/10 7/10 8/10 Review Yes No No N80p 3L Gore-Tex Regular 660 g / 1 lb 7.3 oz 83 cm / 32.5 in Yes Sabre SV (Men's) Skiing N/A 10/10 10/10 10/10 1/10 Strongest ski jacket. Review Yes Yes No N100d Most Rugged 3L Gore-Tex Pro Regular 595 g / 1 lb 5 oz 85 cm / 33.5 in No Sentinel AR (Women's) Skiing N/A 7/10 8/10 7/10 7/10 Review Yes No No N70p 3L Gore-Tex Regular 590 g / 1 lb 4.8 oz 72.5 cm / 28.5 in Yes Sentinel LT (Women's) Skiing N/A 7/10 8/10 7/10 8/10 Review Yes No No N80p 3L Gore-Tex Regular 565 g / 1 lb 3.9 oz 73.5 cm / 29 in Yes Shashka Stretch (Women's) Skiing N/A No data No data No data No data Yes No No N70p Gore-Tex Infinium Trim 670 g / 1 lb 7.6 oz 71 cm / 28 in Yes Trino SL (Men's) Running N/A 8/10 5/10 7/10 6/10 Review No No No Gore-Tex Infinium Trim 340 g / 12 oz 74 cm / 29.1 in Yes Trino SL Anorak (Women's) Running N/A 8/10 7/10 8/10 7/10 Review No No No Gore-Tex Infinium Trim 290 g / 10.2 oz 65 cm / 25.5 in Yes Venda Anorak (Women's) Around Town N/A No data No data No data No data No No No Gore-Tex Relaxed 255 g / 9 oz 75.5 cm / 29.7 in Yes Zeta AR (Men's) Hiking N/A 7/10 8/10 7/10 4/10 Yes No No 3L Gore-Tex Regular 425 g / 15 oz 80 cm / 31.5 in Yes Zeta FL (Men's - Women's) Hiking N/A 4/10 6/10 4/10 6/10 No No No N20r 2L Gore-Tex Trim 221 g / 7.8 oz 76 cm / 30 in Yes Zeta LT (Men's - Women's) Hiking N/A 5/10 7/10 8/10 5/10 No No No N40P-X 3L Gore-Tex Trim 335 g / 11.8 oz 78 cm / 30.75 in Yes Zeta SL (Men's - Women's) Hiking N/A 3/10 5/10 4/10 5/10 Review No No No 2L Gore-Tex Trim 310 g / 10.9 oz 77.8 cm / 30.6 in Yes
Breathability
Atom (aka LT) literally destroys the Proton (aka LT) and Nano Air in this regard.
Atom's side fleece panels are freaking huge.
I'd put the Proton and Nano Air at the same level of breathability. Proton can be slightly more breathable, but that's when we look at the tech specs. Definitely nothing noticeable going on in there.
Wind resistance
Atom's side fleece panels is a double edged sword. It lets the wind in. When I'm cycling I'm especially aware of this.
Not only because I'm going against the wind (i.e the wind's relative velocity is higher), but also because these mesh panels are more exposed since my arms are up.
Proton and Nano Air again come very close in here.
All are DWR coated.
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 at arcteryx.com 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.
They do by the way have an additional hybrid models of both. That of Proton (aka LT) is Proton Hybrid Hoody, and of Nano Air is Nano Air Light Hybrid. I do own the former but not the latter.
They're like a crossover between a synthetic insulated jacket and a softshell.
This "upgrade" in face fabrics translate into better wind, water and abrasion resistance. But you give up insulation and breathability in return.
Pockets
External zippered chest pocket dimensions of the Proton (aka LT).
Amount of pockets is the same in all three. Find pocket dimensions below.
- Nano Air:
- Hand warmers: 7.1 in (or 18 cm) x 11 in (or 28 cm)
- External zippered chest pockets: 7.9 in (or 20 cm) x 9.9 in (or 25 cm)
- Atom:
- Hand warmers: 10.6 in (or 27 cm) height x 7.1 in (or 18 cm) width
- Internal zippered chest pocket: 9.9 in (or 25 cm) height x 7.5 in (or 19 cm) width
- Proton:
- Hand warmers: 9.4 in (or 24 cm) height x 7.5 in (or 19 cm) width
Packability
Nano Air is the only packable of all these three.
It's packed into the external chest pocket. Packed size is 7.5 in (or 19 cm) x 7.5 in (or 19 cm) x 4 in (or 10 cm) but it's irregular in geometry, as you see.
When I pack & unpack it ends up in a different shape so the dimensions (not the volume) can change slightly.
Fit
I personally like Atom's and Proton's fit better and find them more comfortable.
Canberk is 5'11" and 165 pounds, with an athletic build. Size Medium fits him perfectly across almost all brands and product lines. 
