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Home / Gear / Jackets / Insulated Jackets / Down Jackets

Arc’teryx Thorium Review

Last updated: November 14, 2022 by Canberk Koksal

  • This article is revised after Arc'teryx FW24 update. 
  • Don't miss out on REI's current sale - shop now and save on all your outdoor gear needs!
    • https://www.rei.com/h/deals

The name of Thorium AR has been changed to Thorium for winter 2023. There has also been some design updates: 

  • A two way zipper is added, which to me is the main (and the strangest) highlight, 
  • An external chest pocket is added, 
  • Fit is now a little bit baggier, 
  • Baffles are a bit larger (see image below), 
  • Hood is now helmet compatible, 
  • Amount of 750 FP down is increased from 130 grams to 140 grams,
  • Made more eco-friendly. 

There has also been subtle changes in the weight (slight increase) and center back length (slight decrease). Check out the jackets database table below for more details about them. 

Thorium Parka is also just in! Here's the Thorium vs Thorium Parka vs Thorium AR side-by-side comparison page on arcteryx.com: https://arcteryx.com/us/en/compare/X000006585-bitters/X000006919-black/X000006972-figment

Arc'teryx Thorium vs Thorium AR. I loved the 24k black color of Thorium AR a lot. Click on image to visit the new Thorium Hoody page on arcteryx.com. 

Even if Arc'teryx decides to discontinue the Thorium AR in the future, its second hand will live pretty long because of its popularity and durability. 

Summary

Arc'teryx Thorium is a fantastic, warm down jacket for casual use in dry areas. It's comfortable, light, stuffs into itself and is even equipped with a two way zipper. 

I wouldn't recommend it for damp areas at all though. Because it soaks water like a sponge (as all down jackets do). Don't think about it for high output activities either (fragile face fabric and poor breathability). 

FYI, Thorium isn't the only down jacket line Arc'teryx offers. There's the Cerium line, too - which is a lighter and less warm alternative to it. 

Links: 

  • https://arcteryx.com/us/en/shop/mens/thorium-hoody
  • https://arcteryx.com/us/en/shop/womens/thorium-hoody
  • Thorium vs Cerium side by side comparison page on arcteryx.com: https://arcteryx.com/us/en/compare/X000006972-figment/X000006919-black

Warmth

Thorium is pretty warm, especially for its weight. This isn't surprising news for any down jacket as they offer incredible warmth to weight ratio. 

Check out its temperature rating below: 

  • Arc'teryx Jackets: Temperature Ratings

Updated almost daily for Fall 2023 - Winter 2024 season. 

NameEst. Temp (F/C)ReviewPit venting?Two way zipper?Stuffs into itself?TypeFill PowerFill Weight (grams)Fill Volume (FP x FW)Synthetic Insulator (SI)SI AmountFace FabricActivityFitWeightLength (CB)Discontinued?
Arc'teryx Alpha (Men's - Women's)-18/-28ReviewNoYesYesDown850296251,600Coreloft90 g/m²N30r 2L GoreTex InfiniumClimbingRegular805 g / 1 lb 12.4 oz86 cm / 34 inNo
Feathered Friends Khumbu-17/-27NoNoYesDown900378340,200Primaloft Gold200 gPretex Shield XTAll RoundRegular960 g / 2 lb 2 oz?No
Arc'teryx Ceres SV (Men's - Women's)-15/-26ReviewNoYesYesDown850240204,000Coreloft?Arato 30All RoundRegular880 g / 1 lb 15 oz86 cm / 34 inYes
Mountain Equipment K7 (Men's)-13/-25NoYesYesDown800300240,000N/AN/A30D DriliteAll RoundRegular820 g / 1 lb 13 oz76 cm / 30 inNo
Rab Positron Pro (Men's)-13/-25NoYesYesDown800300240,000N/AN/A40D Pertex Quantum ProAll RoundRegular740 g / 1 lb 10 oz85 cm / 33.5 inNo
Arc'teryx Therme SV (Men's)-11/-24ReviewNoYesNoParka750211158,250Coreloft60 g/m²2L Gore-TexAround TownRegular1.072 kg / 2 lb 5.8 oz96 cm / 37.75 inNo
Patagonia Grade VII (Men's)-11/-24NoYesNoDown800335268,000N/AN/A1.2 oz 15 & 20D Perfex QuantumAround TownRegular743 g / 1 lb 10.1 oz83 cm / 32.5 inNo
Arc'teryx Firebee AR (Men's - Women's)-10/-23ReviewNoYesYesDown800225180,000N/AN/AArato 7 & 10All RoundRegular680 g / 1 lb 8 oz79 cm / 31 inYes
Mountain Equipment Exo (Men's)-10/-23NoYesYesDown800265212,000N/AN/ANylonAll RoundRegular770 g / 1 lb 11.2 oz79 cm / 31 inNo
Arc'teryx Thorsen (Men's)-7/-22ReviewNoYesNoParka750192144,000Coreloft60 g/m²90D 2L Gore-TexAround TownRegular1.1 kg / 2 lb 5.4 oz91 cm / 36 inYes
Patagonia Frozen Range (Men's - Women's)-6/-21ReviewNoNoNoParka700268187,600N/AN/A4 oz 75-denier polyesterAround TownRegular1.253 kg / 2 lb 12.2 oz84 cm / 33 inNo
Mountain Equipment Li. Ec. (Men's - Women's)-5/-20NoYesNoDown700295206,500N/AN/A50D DriliteAll RoundRegular822 g / 1 lb 13 oz72 cm / 28 inNo
Arc'teryx Thorium Parka (Women's)-2/-19ReviewNoYesNoParka750209156,750Coreloft80 + 140 g/m²Arato 20Around TownRegular610 g / 1 lb 5.5 oz115.8 cm/ 45.6 inNo
Rab Neutrino Pro (Men's - Women's)-2/-19NoYesYesDown800212169,600N/AN/A20D Pertex Quantum ProAll RoundRegular585 g / 1 lb 8.6 oz77 cm / 30.3 inNo
Arc'teryx Patera Long (Women's)0/-18NoYesNoParka750204153,000Coreloft60 + 80 g/m²2L Gore-TexAround TownRegular1.1 kg / 2 lb 6.8 oz117.5 cm / 46.25 inNo
Arc'teryx Beta Down Insulated (Men's)0/-18YesYesNoParka850126107,100Coreloft80 g/m²2L 40D Gore-TexAll RoundRegular760 g / 1 lb 10.8 oz?No
Arc'teryx Dually Belay (Men's)0/-18ReviewNoYesYesSyntheticN/AN/AN/AThermaTek92 g/m²30D NylonAround TownRegular705 g / 1 lb 9 oz84 cm / 33 inYes
Arc'teryx Centrale (Women's)0/-18ReviewNoYesNoParka750157117,750Coreloft60 g/m²N90p NylonAround TownRegular885 g / 1 lb 15.2 oz95 cm / 37.5 inYes
Arc'teryx Camosun (Men's)0/-18ReviewNoNoNoParka75010578,750Coreloft140 g/m²N150p-X Gore-TexAround TownTrim960 g / 2 lb 1.9 oz80 cm / 31.5 inYes
Arc'teryx Cerium SV (Men's)0/-18ReviewNoNoYesDown850162137,700Coreloft80 + 140 g/m²Arato 7 & 10All RoundRegular415 g / 14.6 oz69.5 cm / 27.4 inYes
Arc'teryx Revet (Men's)2/-17NoYesNoParka750?N/AN/A20d nylon/spandex double weaveAround TownRegular755 g / 1 lb 10.6 oz91 cm / 36 inYes
Arc'teryx Piedmont (Men's)3/-16NoYesYesParka750218163,500N/AN/AArato 10Around TownRegular515 g / 1 lb 2.2 oz82 cm / 32.25 inYes
Arc'teryx Fission SV (Men's - Women's)3/-16ReviewNoYesNoSyntheticN/AN/AN/ACoreloft Continuous90 + 65 g/m²N80p-X Gore-Tex 2LAll RoundRegular890 g / 1 lb 15.4 oz81 cm / 31.8 inYes
Arc'teryx Alpha Lightweight (Men's)3/-16NoYesYesDown85011799,450Coreloft Compact40 g/m²Hadron 2L Gore-Tex InfiniumClimbingRegular540 g / 1 lb 3 oz?No
Outdoor Research Sup. Alp. (Men's - Women's)3/-16NoYesNoDown800182145,600N/AN/A30D Pertex Quantum ProAll RoundRegular825 g / 1 lb 13.1 oz85 cm / 33.5 inNo
Arc'teryx Alessa Long (Women's)3/-16NoNoNoParkaN/AN/AN/ACoreloft80 + 120 g/m²N90p 2L Gore-TexAround TownRegular1.015 kg / 2 lb 3.8 oz123 cm / 48.5 inYes
Patagonia Tres 3-in-1 (Men's - Women's)3/-16ReviewNoNoNoParka70011882,600N/AN/A5.5 oz polyesterAround TownRegular1.307 kg / 2 lb 14.1 oz85 cm / 33.5 inNo
Arc'teryx Radsten Parka (Men's)3/-16NoNoNoParkaN/AN/AN/ACoreloft Compact120 g/m²NP100d Gore-Tex 2LAround TownRegular745 g / 1 lb 10.3 oz82 cm / 32.25 inYes
Rab Electron Pro (Men's - Women's)5/-15NoYesYesDown800180144,000N/AN/A20D Pertex Quantum ProAll RoundRegular525 g / 1 lb 2.5 oz74 cm / 29 inNo
Arc'teryx Therme Parka (Men's)5/-15ReviewNoYesNoParka75012090,000Coreloft60 + 80 g/m²P75d PolyesterAround TownRegular991 g / 2 lb 3 oz85 cm / 33.5 inNo
Arc'teryx Macai (Men's)5/-15ReviewYes, zipsNoNoDown7506951,750Coreloft Compact60 + 100 g/m²N40p-X 3L Gore-TexSki/SnowboardRegular1 kg / 2 lb 4 oz76 cm / 30 inYes
Arc'teryx Nuclei SV (Men's)5/-15ReviewNoYesYesSyntheticN/AN/AN/ACoreloft Continuous180 g/m2 + 90 g/m2Arato 15ClimbingRegular600 g / 1 lb 5.2 oz81 cm / 31.8 inNo
Patagonia DAS Parka (Men's)5/-15NoYesYesParkaN/AN/AN/APrimaLoft Gold Insulation Eco133 + 40 gPertex Quantum ProAround TownRegular555 g / 1lb 3.6 oz84 cm / 33 inNo
Arc'teryx Patera (Women's)5/-15ReviewNoYesNoParka7505843,500Coreloft60 + 80 g/m²2L Gore-TexAround TownTrim867 g / 1 lb 14.6 oz99 cm / 39 inNo
Black Diamond Access Down (Men's - Women's)7/-14NoYesYesDown700155108,500N/AN/A30D ripstop nylonAll RoundRegular442 g / 15.6 oz76 cm / 29.75 inNo
Arc'teryx Kappa (Men's)7/-14ReviewNoYesNoSyntheticN/AN/AN/ACoreloft Continuous140 g/m²N70p Gore ThermiumAll RoundRegular755 g / 1 lb 10.6 oz80 cm / 31.5 inYes
Arc'teryx Prema Down Coat (Women's)7/-14NoYesNoParka7509269,000N/AN/ANylonAround TownRegular794 g / 1 lb 12 oz117 cm / 46.1 inYes
Arc'teryx Radsten Insulated (Men's)7/-14NoNoNoParkaN/AN/AN/ACoreloft Compact120 g/m²NP100d Gore-Tex 2LAround TownRegular715 g / 1 lb 9.2 oz73 cm / 28.75 inYes
Rab Microlight Alpine (Men's - Women's)7/-14NoNoYesDown700153107,100N/AN/A30D Pertex QuantumAll RoundRegular466 g / 1 lb 0.5 oz72 cm / 28.5 inNo
Arc'teryx Thorium (Men's - Women's)7/-14ReviewNoYesYesDown750140105,000Coreloft80 + 140 g/m²Arato 30All RoundRegular517 g / 1 lb 2.2 oz71.5 cm / 28.1 inNo
Feathered Friends Eos8/-13NoNoYesDown90010594,500N/AN/APertex QuantumAll RoundRegular306 g / 10.8 oz?No
Arc'teryx Thorium AR 2020 (Men's - Women's)8/-13ReviewNoNoYesDown75013097,500Coreloft80 + 140 g/m²Arato 30All RoundRegular490 g / 1 lb 1.3 oz72 cm / 28.3 inYes
Patagonia Macro Puff (Men's - Women's)8/-13ReviewNoNoNoSyntheticN/AN/AN/APlumaFill135 + 90 g10D Recycled nylon ripstopAll RoundRegular435 g / 15.3 oz79 cm / 31 inNo
Arc'teryx Macai LT (Men's)8/-13Yes, zipsNoNoDown7504936,750Coreloft Compact60 g/m²N40p-X 3L Gore-TexSki/SnowboardRegular855 g / 1 lb 14.2 oz74 cm / 29.1 inYes
Arc'teryx Seyla (Women's)8/-13NoYesNoParka7509269,000N/AN/AArato 10Around TownRegular507 g / 1 lb. 1.9 oz.87 cm / 34.4 inYes
Patagonia Fitz Roy (Men's - Women's)8/-13NoNoYesDown800128102,400N/AN/A20D NylonAll RoundRegular632 g / 1lb 6.3 oz74 cm / 29 inNo
Arc'teryx Koda (Men's)8/-13NoNoNoParkaN/AN/AN/ACoreloft80 + 140 g/m²N80p-X Gore-TexAround TownRegular720 g / 1 lb 9.4 oz75 cm / 29.5 inYes
Patagonia Vosque 3-in-1 (Women's)10/-12ReviewNoNoNoParkaN/AN/AN/AThermoLite100 g65% nylon, 35% polyesterAround TownRegular1.360 kg / 3 lb90 cm / 35.5 inNo
Patagonia City Storm Down (Men's - Women's)12/-11NoNoYesParka700191133,700N/AN/A4.2 oz polyesterAll RoundRegular468 g / 16.5 oz91 cm / 36 inNo
Patagonia Jackson Glacier (Men's - Women's)12/-11ReviewNoYesNoParka70014198,700N/AN/A3.6 oz 50D polyesterAround TownRegular880 g / 1 lb 15 oz79 cm / 31 inNo
Arc'teryx Sensa (Women's)14/-10NoYesNoParkaN/AN/AN/ACoreloft Compact120 g/m²NP100d Gore-Tex 2LAround TownRelaxed785 g / 1 lb 11.7 oz86 cm / 34 inYes
Patagonia Hi Loft Down (Men's - Women's)14/-10ReviewNoNoYesDown600177106,200N/AN/A1.4 oz 30D polyesterAll RoundRegular540 g / 1 lb 3 oz76 cm / 30 inNo
REI Magma 850 Hoodie 2.0 (Men's - Women's)14/-10NoNoYesDown850120102,000N/AN/APertex mini ripstop nylonAll RoundRegular340 g / 13.75 oz74 cm / 29.25 inNo
Arc'teryx Beta Insulated Coat (Women's)16/-9ReviewNoYesNoSyntheticN/AN/AN/ACoreloft 80 g/m² + 120 g/m²2L 40D Gore-TexAround TownRegular600 g / 1 lb 5.2 oz?No
Arc'teryx Atom Hw. (aka AR) (Men's - Women's)18/-8ReviewYes, meshNoNoSyntheticN/AN/AN/ACoreloft Continuous120 g/m2 + 80 g/m2 + 60 g/m230D TyonoAll RoundRegular475 g / 1 lb 74 cm / 29.1 inNo
Patagonia Downdrift (Men's - Women's)18/-8NoNoNoDown600279167,400N/AN/A4.2 oz polyesterAround TownRegular1.014 kg / 2 lb 3.8 oz?No
Arc'teryx Magnus (Men's)19/-7NoNoNoParkaN/AN/AN/ACoreloft80 gN60p Gore-Tex 2LAround TownRegular690 g / 1 lb 8.3 oz83 cm / 32.5 inYes
Arc'teryx Proton Hw. (Men's - Women's)21/-6ReviewNoNoNoSyntheticN/AN/AN/ACoreloft100 g/m2 + 60 g/m2Fortius Air 50ClimbingRegular540 g / 1 lb 3 oz77 cm / 30.5 inNo
Arc'teryx Agrium (Men's - Women's)21/-6NoNoYesDown85011799,450N/AN/AAratoAll RoundRegular365 g / 12.9 oz75 cm / 29.5 inYes
Patagonia AlpLight Down (Men's - Women's)21/-6NoNoYesDown80010080,000N/AN/A0.8 oz 10D polyesterAll RoundSlim270 g / 9.5 oz74 cm / 29 inNo
Arc'teryx Beta Insulated (Men's - Women's)21/-6ReviewYes, zipsYesNoSyntheticN/AN/AN/ACoreloft Continuous80 g/m²2L 40D Gore-TexAll RoundRegular680 g / 1 lb 8 oz78.5 cm / 31 inNo
Patagonia Topley (Men's)23/-5NoYesNoDown700172120,400N/AN/A6 oz polyesterAll RoundRegular1.133 kg / 2 lb 8 oz77 cm / 30.5 inNo
Arc'teryx Alpha IS (Men's)23/-5NoYesYesSyntheticN/AN/AN/ACoreloft Continuous65 g/m²N40p-X 2L Gore-TexClimbingRegular610 g / 1 lb 5.5 oz78 cm / 30.75 inYes
Rab Xenon 2.0 (Men's - Women's)23/-5NoYesYesSyntheticN/AN/AN/APrimaLoft Silver60 g30D Pertex QuantumAll RoundRegular385 g / 13.6 oz71.5 cm / 28.1 inNo
Patagonia Down Sweater (Men's - Women's)23/-5ReviewNoNoYesDown800150120,000N/AN/A1.4 oz 20x30D polyesterAll RoundRegular428 g / 15.1 oz67 cm / 26.25 inNo
Arc'teryx Ralle Parka (Men's)25/-4NoYesNoParkaN/AN/AN/ACoreloft 80 g/m²2L 40D Gore-TexAround TownRegular735 g / 1 lb 9.9 oz83 cm / 32.5 inNo
Patagonia Silent Down (Men's - Women's)26/-3ReviewNoNoNoDown70010976,300N/AN/A2.2 oz polyesterAround TownRegular585 g / 1 lb 4.7 oz74 cm / 29 inNo
Arc'teryx Therme Insulated (Men's)26/-3ReviewNoNoNoSyntheticN/AN/AN/ACoreloft Compact40 g/m²2L Gore-TexAround TownRegular960 g / 2 lb 1.9 oz73 cm / 28.75 inYes
Arc'teryx Cerium (aka LT) (Men's - Women's)26/-3NoNoYesDown85011396,050Coreloft 80 + 100 g/m²Arato 15All RoundTrim335 g / 11.8 oz72 cm / 28.3 inNo
Mountain Hardwear GW/2 (Men's - Women's)28/-2NoNoYesDown8008568,000N/AN/A10D Ripstop NylonAll RoundTrim250 g / 8.8 oz70 cm / 27.5 inNo
Arc'teryx Cerium LT 2020 (Men's - Women's)28/-2ReviewNoNoYesDown85010286,700Coreloft 80 + 100 g/m²Arato 10All RoundTrim305 g / 10.8 oz72 cm / 28.3 inYes
Arc'teryx Nuclei (aka FL) (Men's - Women's)32/0ReviewNoNoYesSyntheticN/AN/AN/ACoreloft Continuous65 g/m²Arato 10rClimbingTrim325 g / 11.5 oz75 cm / 29.5 inNo
Patagonia DAS Light (Men's - Women's)34/1NoYesYesSyntheticN/AN/AN/APlumaFill65 g0.8-oz 10-denier Pertex Quantum ProClimbingRegular320 g / 11.3 oz77 cm / 30.5 inNo
Patagonia Isthmus (Men's)36/2NoNoNoParkaN/AN/AN/AThermoGreen60 g4.2 oz polyesterAround TownRegular895 g / 1 lb 15.6 oz70 cm / 27.5 inNo
Arc'teryx Proton (aka LT) (Men's - Women's)37/3ReviewNoNoNoSyntheticN/AN/AN/ACoreloft Compact80 g/m2 + 60 g/m2Fortius Air 20ClimbingTrim375 g / 13.2 oz75 cm / 29.4 inNo
Patagonia Nano Puff (Men's - Women's)37/3ReviewNoNoYesSyntheticN/AN/AN/APrimaLoft Gold Insulation Eco60 g22D PolyesterAll RoundRegular363 g / 12.8 oz71.5 cm / 28 inNo
Arc'teryx Norvan SL Ins. (Men's - Women's)39/4NoNoYesSyntheticN/AN/AN/ACoreloft Compact40 g/m²Gore-Tex ShakeDryRunningTrim270 g / 9.5 oz71.5 cm / 28.1 inYes
Patagonia Micro Puff (Men's - Women's)41/5ReviewNoNoYesSyntheticN/AN/AN/APlumaFill65 gPertex QuantumAll RoundRegular298 g / 10.5 oz75 cm / 29.5 inNo
Patagonia Nano Air (Men's - Women's)41/5ReviewNoNoNoSyntheticN/AN/AN/AFullRange60 g33D Nylon ripstopAll RoundTrim318 g / 11.2 oz?No
Arc'teryx Atom (aka LT) (Men's - Women's)43/6ReviewYes, meshNoNoSyntheticN/AN/AN/ACoreloft Continuous60 g/m²20D TyonoAll RoundTrim375 g / 13.2 oz74 cm / 29.1 inNo
Arc'teryx Cerium Lw. (aka SL) (Men's - Women's)43/6ReviewNoNoYesDown8505849,300Coreloft 40 + 100 g/m²Arato 7All RoundTrim215 g / 7.6 oz69 cm / 27.2 in No
Arc'teryx Cerium Hybrid (Men's)44/7NoNoYesDown8504437,400Coreloft 40 + 100 g/m²Arato 15 + Fortius Air 50All RoundTrim260 g / 9.2 oz70 cm / 27.5 inNo
Arc'teryx Proton Hybrid (Men's - Women's)46/8ReviewNoNoNoSyntheticN/AN/AN/ACoreloft Compact40 g/m²Fortius Air 50All RoundTrim365 g / 12.9 oz76 cm / 30 inNo
Arc'teryx Proton Lw. (aka FL) (Men's - Women's)48/9ReviewNoNoNoSyntheticN/AN/AN/AOcta Loft94 g/m²Fortius Air 20ClimbingTrim343 g / 12.1 oz75 cm / 29.5 inNo
Arc'teryx Atom Lw. (aka SL) (Men's - Women's)52/11ReviewYes, meshNoNoSyntheticN/AN/AN/ACoreloft Compact40 g/m²20D TyonoAll RoundTrim270 g / 9.5 oz72 cm / 28.3 inNo
REI Stormhenge Hybrid (Men's - Women's)TestingYes, zipsNoNoDown850?N/AN/A40D + 80DAll RoundRegular900 g / 1 lb 15.75 oz80 cm / 31.5 inNo
Arc'teryx Coelle Parka (Women's)TestingNoYesNoParkaN/AN/AN/ACoreloft80 + 140 g/m²40D 2L Gore-TexAround TownRegular460 g / 1 lb 0.2 oz95 cm / 37.4 inNo
Sabre Insulated (Men's)TestingYes, zipsYesNoSyntheticN/AN/AN/AN/ACoreloft60 + 80 g/m²Fortius Air 50Regular535g / 1 lb 2.9 oz?No

View full table at https://outdoorcrunch.com/best-arcteryx-jacket/. 

If you're confused now and don't know which jacket best corresponds to your own needs, then follow the advice given in https://arcteryx.com/us/en/shop/jacket-finder/. 

The temperature ratings in this list are intended to represent the lowest temperatures you can wear each jacket without feeling uncomfortably cold. 

Keep in mind that these are only approximate values, assuming: 

  • worn over a shirt only and no shell over, 
  • during daily use (strolls, power walks etc at most - no high output activities), 
  • with light wind, 
  • and when it's dry out.

These values applicable to your torso only. Your hands, legs and feet are still subject to their own additional insulation.

The best practice is usually to use this table for comparing each jacket to one another, rather than pinpointing their ratings. 

Also, ratings will best respond to males. As most women tend to run colder than men, for women, shifting these ratings a bit is recommended. 

Always opt for the warmer option when in doubt. For jackets with Atom AR level warmth and beyond, recommended is almost always the hooded models. 

  • Also see: Arc'teryx Shells
NameActivityBreathabilityWeather Res.DurabilityPackabilityTemp (F/C)Bottom lineReviewPit zips?Two way zipper?Stuffs into itself?Hood?Face FabricFitWeightLengthDiscontinued?
Alpha FL (Men's - Women's)Climbing4/105/106/1010/10N/ANoNoYesHadron 3L Gore-TexTrim209 g / 7.4 oz76.5 cm / 30 inYes
Alpha SL (Men's - Women's)Climbing3/104/106/109/10N/ANoNoYesN40p 3L Gore-TexTrim326 g / 11.5 oz77.5 cm / 30.5 inYes
Alpha (aka AR) (Men's - Women's)Climbing8/107/108/104/10N/AGo-to climbing harshell. ReviewYesNoNoN40d & N80d Most Rugged 3L Gore-Tex ProRegular430 g / 15.2 oz79.5 cm / 31.25 inNo
Alpha SV (Men's - Women's)Climbing8/1010/1010/103/10N/AStrongest climbing hardshell. ReviewYesNoNoN100d Most Rugged 3L Gore-Tex ProRegular510 g / 1 lb 2 oz78 cm / 30.75 inNo
Alpha IS (Men's)Climbing7/105/105/108/1023/-5NoYesYesN40p-X 2L Gore-TexRegular610 g / 1 lb 5.5 oz78 cm / 30.75 inYes
Beta (Men's - Women's)All Round5/105/104/105/10N/ANoNoNoN30p-X 3L Gore-TexFitted300 g / 10.6 oz76 cm / 30 inNo
Beta LongAll Round5/108/108/103/10N/AReviewNoNoNoN80p 3L Gore-TexRegular441 g / 15.6 oz85 cm / 33.5 inYes
Beta Coat (Women's)All Round7/105/104/105/10N/ANoYesNo3L Gore-TexRegular320 g / 11.3 oz?No
Beta LT HadronAll Round5/105/104/105/10N/ANoNoNoHadron 3L Gore-TexFitted255g / 9 oz76 cm / 30 inYes
Beta LT (Men's - Women's)All Round8/107/108/105/10N/AReviewYesNoNoN40d 3L Gore-TexFitted395 g / 13.9 oz76 cm / 30 inNo
Beta Insulated (Men's - Women's)All Round10/104/104/102/1021/-6Go-to hybrid jacket.ReviewYesYesNoN40d 2L Gore-TexRegular680 g / 1 lb 8 oz78.5 cm / 31 inNo
Beta Insulated Coat (Women's)All Round7/104/104/102/1016/-9NoYesNoN40d 2L Gore-TexRegular600 g / 1 lb 5.2 oz?No
Beta AR (Men's - Women's)All Round8/108/108/104/10N/AGo-to all-round harshell. ReviewYesNoNoN40d & N80d Most Rugged 3L Gore-Tex ProRegular460 g / 1 lb 76 cm / 30 inNo
Beta AR StormHood (Men's - Women's)All Round8/108/108/104/10N/AReviewYesNoNoN40d & N80d Most Rugged 3L Gore-Tex ProRegular460 g / 1 lb 76 cm / 30 inNo
Beta SV (Men's - Women's)All Round8/1010/109/103/10N/AStrongest all-round harshell. ReviewYesNoNoN80p-X Most Rugged 3L Gore-Tex ProRegular495 g / 1 lb 1.5 oz79 cm / 31 inNo
Gamma Lw. (aka SL) (Men's - Women's)All Round7/102/106/105/10N/AReviewNoNoNoFortius 1.0Trim310 g / 10.9 oz74 cm / 29.1 inNo
Gamma (aka LT) (Men's - Women's)All Round7/103/107/103/10N/AGo-to softshell.ReviewNoNoNoWee BurlyRegular545 g / 1 lb 3.2 oz76 cm / 30 inNo
Gamma MX (Men's - Women's)All Round6/104/108/103/10N/AStrongest softshell.ReviewNoNoNoFortius 2.0Regular555 g / 1 lb 3.6 oz74 cm / 29.1 inNo
Rush (Men's)Skiing8/109/109/103/10N/AGo-to ski jacket. ReviewYesNoNoN80p-X & N100p-X 3L Most Rugged Gore-Tex ProRegular590 g / 1 lb 4.8 oz79.5 cm / 31.25 inNo
Rush Insulated (Men's - Women's)Skiing4/10No dataNo data9/1016/-9NoNoYesHadron 2L Gore-Tex InfiniumRegular515 g / 1 lb 2.2 oz79 cm / 31 inNo
Sabre (Men's)Skiing8/108/107/102/10N/AYesNoNoN80p-X 3L Gore-TexRegular705 g / 1 lb 8.9 oz79 cm / 31 inNo
Sabre SV (Men's)Skiing10/1010/1010/101/10N/AStrongest ski jacket.YesYesNoN100d Most Rugged 3L Gore-Tex ProRegular595 g / 1 lb 5 oz85 cm / 33.5 inNo
Sabre Insulated (Men's)Skiing7/10Testing6/10TestingTestingYesNoNoN80p 2L Gore-TexRegular815 g / 1 lb 12.7 oz76 cm / 30 inNo
Macai (Men's)Skiing7/107/106/101/105/-15ReviewYesNoNoN40p-X 3L Gore-TexRegular990 g / 2 lb 2.9 oz75 cm / 29.5 inNo
Macai Lightweight (aka LT) (Men's)Skiing7/106/106/102/108/-13YesNoNoN40p-X 3L Gore-TexRegular855 g / 1 lb 14.2 oz?No
Theriss Down (Women's)Skiing7/106/105/102/10TestingYesNoNoN80p 2L Gore-TexRegular709 g / 1 lb 9 oz63 cm / 24.8 inNo
Sentinel (Women's)Skiing8/107/107/102/10N/AGo-to ski jacket. YesNoNoN70p 3L Gore-TexRegular370 g / 13.1 oz73.7 cm / 29 inNo
Sentinel Insulated (Women's)Skiing7/10TestingTestingTesting21/-6YesNoNoN80p 2L Gore-TexRegular600 g / 1 lb 5.2 oz79.8 cm / 31.5 inNo
Andessa (Women's)Skiing10/10TestingTesting1/108/-13YesNoNoN40d 3L Gore-TexTrim869 g / 1 lb 14.7 oz67 cm / 26.4 inYes
Andessa Shell (Women's)Skiing5/10TestingTesting3/10N/ANoNoNoN70p 3L Gore-TexTrim560 g / 1 lb 3.8 oz?Yes
Micon HeatherSkiingNo dataNo dataNo dataNo dataN/AYesNoNoNP100-d 3L Gore-TexRegular685 g / 1 lb 8.2 oz83 cm / 32.5 inYes
Micon (Men's)SkiingNo dataNo dataNo dataNo dataN/AYesNoNoN80p 3L Gore-TexRegular685 g / 1 lb 8.2 oz83 cm / 32.5 inYes
Cassiar (Men's)Skiing8/107/108/103/10N/AReviewYesNoNoN70p 3L Gore-TexTrim820 g / 1 lb 12.9 oz74.5 cm / 29.3 inYes
Cassiar LT (Men's)Skiing6/106/106/105/10N/AReviewYesNoNoN70p 3L Gore-TexTrim605 g / 1 lb 5.3 oz75 cm / 29.5 inYes
Ravenna (Women's)Skiing8/107/108/103/10N/AReviewYesNoNoN70s-4 3L Gore-TexTrim725 g / 1 lb 9.6 oz69.5 cm / 27.4 inYes
Ravenna LT (Women's)Skiing6/106/106/105/10N/AReviewYesNoNoN70p 3L Gore-TexTrim540 g / 1 lb 3 oz69 cm / 27.2 inYes
Procline (Men's)SkiingNo dataNo dataNo dataNo dataN/AYesNoNoN70p Gore-Tex InfiniumTrim720 g / 1 lb 9.4 oz76 cm / 30 inYes
Shashka Stretch (Women's)SkiingNo dataNo dataNo dataNo dataN/AYesNoNoN70p Gore-Tex InfiniumTrim670 g / 1 lb 7.6 oz71 cm / 28 inYes
Sabre AR (Men's)Skiing7/108/107/107/10N/AReviewYesNoNoN70p 3L Gore-TexRegular700 g / 1 lb 8.7 oz79 cm / 31 inYes
Sentinel AR (Women's)Skiing7/108/107/107/10N/AReviewYesNoNoN70p 3L Gore-TexRegular590 g / 1 lb 4.8 oz72.5 cm / 28.5 inYes
Sabre LT (Men's)Skiing7/108/107/108/10N/AReviewYesNoNoN80p 3L Gore-TexRegular660 g / 1 lb 7.3 oz83 cm / 32.5 inYes
Sentinel LT (Women's)Skiing7/108/107/108/10N/AReviewYesNoNoN80p 3L Gore-TexRegular565 g / 1 lb 3.9 oz73.5 cm / 29 inYes
Incendia (Women's)Skiing8/109/109/103/10N/AReviewYesNoNoNP100d 3L Gore-TexTrim610 g / 1 lb 5.5 oz79 cm / 31 inYes
Indencia ISSkiingNo dataNo dataNo dataNo dataNo dataYesNoNoN80p 2L Gore-TexRegular?78 cm / 30.75 inYes
Squamish (Men's - Women's)Running5/104/107/109/10N/AGo-to running jacket.ReviewNoNoYes30D TyonoTrim140 g / 4.9 oz77.5 cm / 30.5 inNo
Nodin (Men's - Women's)Running8/105/105/1010/10N/ANoNoYes20D TyonoTrim155 g / 5.5 oz75 cm / 29.5 inNo
Incendo (Men's)Running7/104/105/1010/10N/AReviewNoNoYesLuminTrim125 g / 4.4 oz?Yes
Incendo Airshell (Women's)RunningNo dataNo dataNo dataNo dataN/ANoNoYes????No
Norvan Windshell (Men's - Women's)RunningNo dataNo dataNo dataNo dataN/ANoNoYesPermeair 20Trim90g / 3.2 oz73 cm / 28.75 inNo
Norvan LT (Men's - Women's)Running5/105/108/106/10N/ANoNoNoN13p 3L Gore-TexTrim190 g / 6.7 oz?Yes
Norvan SL Ins. (Women's)RunningNo dataNo dataNo dataNo data39/4NoNoYesGore-Tex ShakeDryTrim270 g / 9.5 oz71.5 cm / 28.1 inYes
Cita (Women's)Running7/104/105/1010/10N/AReviewNoNoYesLuminTrim120 g / 4.2 oz67.5 cm / 26.5 inYes
Cita SL (Women's)Running7/104/104/1010/10N/AReviewYesNoYesPermeair 20Trim65 g / 2.3 oz61.5 cm / 24.2 inYes
Incendo SL (Men's)Running7/104/104/1010/10N/AReviewNoNoYesPermair 20 & CanimTrim80 g / 2.8 oz73 cm / 28.75 inYes
Norvan SL (Men's - Women's)Running7/106/108/108/10N/AReviewNoNoYesGore-Tex InfiniumTrim120 g / 4.2 oz77 cm / 30.4 inYes
Trino SL (Men's)Running8/105/107/106/10N/AReviewNoNoNoGore-Tex InfiniumTrim340 g / 12 oz74 cm / 29.1 inYes
Trino SL Anorak (Women's)Running8/107/108/107/10N/AReviewNoNoNoGore-Tex InfiniumTrim290 g / 10.2 oz65 cm / 25.5 inYes
Solano (Women's)Around TownNo dataNo dataNo dataNo dataN/AReviewNoNoNoGore-Tex InfiniumRelaxed355 g / 12.5 oz72 cm / 28.3 inNo
Venda Anorak (Women's)Around TownNo dataNo dataNo dataNo dataN/ANoNoNoGore-TexRelaxed255 g / 9 oz75.5 cm / 29.7 inYes
Zeta FL (Men's - Women's)Hiking4/106/104/106/10N/ANoNoNoN20r 2L Gore-TexTrim221 g / 7.8 oz76 cm / 30 inYes
Zeta SL (Men's - Women's)Hiking3/105/104/105/10N/AReviewNoNoNo2L Gore-TexTrim310 g / 10.9 oz77.8 cm / 30.6 inYes
Zeta LT (Men's - Women's)Hiking5/107/108/105/10N/ANoNoNoN40P-X 3L Gore-TexTrim335 g / 11.8 oz78 cm / 30.75 inYes
Zeta AR (Men's)Hiking7/108/107/104/10N/AYesNoNo3L Gore-TexRegular425 g / 15 oz80 cm / 31.5 inYes

When it gets soaked in water (e.g use under precipitation), not only it lets the water in, but it also loses insulating power. That's because down provides warmth by trapping air in its vacant spots, and water, as you can guess, interferes with that mechanism. 

If you'd like to read more about the working principles of down insulated jackets (or synthetic insulated jackets for that matter) check out this article: https://outdoorcrunch.com/jackets/ 

In addition to down, Thorium is also insulated with Coreloft, a synthetic insulator made by Arc'teryx. Just like all synthetic insulators, Coreloft too is much more weather resistant compared to down, and doesn't lose insulating capability under wet conditions. 

If you'd like to read more about Coreloft and other synthetic insulators as well as their working principles, check out the article https://outdoorcrunch.com/clo-values/ in addition to the article I've shared above. 

  • New in:
  • 13 Sep: Proton Heavyweight (Men's - Women's)
  • 13 Sep: Sabre (Men's)
  • 13 Sep: Macai Lightweight (Men's)
  • 7 Sep: Beta Down Insulated (Men's)
  • 7 Sep: Sabre Insulated (Men's)
  • 7 Sep: Atom Shacket (Women's)
  • 7 Sep: Gamma Heavyweight Coat (Women's)
  • 2 Sep: Sabre SV (Men's)
  • Latest on the blog:
  • I bought all 7 of Atom and Proton jackets. Here's how they compare
  • Best Arc'teryx Ski Jackets: Rush is ideal, Sabre SV is overkill
  • Arc’teryx colors: Most and least liked (poll results)
  • I took my Nuclei SV to Pfander, Austria and a floodplain forest
  • Arc'teryx Alpha Parka Review: The most impressive jacket of all time
  • Arc'teryx ReGEAR: OutdoorCrunch exclusive promo code!
  • Beta Insulated Jacket: Pit zips AND two way zipper
  • DropHood vs StormHood: Pros/cons and best uses
  • 5 things all Arc'teryx newbies should know
  • #A sidenote here: Arc'teryx's PDF guide to jackets is GOOOLLLLDDDDD. Absolutely check that out too if you're interested in buying one. 

This brings me to the next point. 

Weather & abrasion resistance

The point of reinforcing a down jacket with synthetic insulators is to provide it at least a little bit of a weather resistance. Because no matter where you live, you don't want to be completely vulnerable to unexpected weather changes. ZERO protection against precipitation is usually unacceptable. 

Reinforcements made in Thorium accomplishes this pretty well. 

My girlfriend wearing my Thorium AR (which, as explained earlier, is NOT the most recent model) in Jokulsarlon, Iceland during late March (2022). On a side note, here's the article on our trip to Iceland. 

We experienced all sorts of snow, rain and drizzle (welcome to Iceland in March) and Thorium did a pretty good job in terms of withstanding it for, say, up to half an hour on average. 

If you need a much more weather resistant jacket with at least the same amount of warmth, then you must forget about down jackets. I'd recommend you to check out Nuclei SV (Men's) and Atom AR (Men's - Women's - read my review) in that case. 

In terms of wind resistance, it's solid and won't cause you any problems, although it's not as solid as wind-proofing focused jackets such as the Nuclei FL (Men's - Women's - read my review). 

Breathability

Thorium is the first of its kind in this regard. 

It's the first light-Arc'teryx-down-jacket that is EVER offered with a two way zipper. 

I've long been mad about Arc'teryx's approach on two way zippers, especially for men's counterparts (almost all of women's parkas offer one but this isn't the case for men's parkas, for example). 

I didn't expect a move like this. Thank you Arc'teryx! 

Now there is a downside to having a two way zipper. It tends to break more often and easily. But I don't see this being a problem unless you're planning to use the jacket for 5+ years. 

It also takes a bit more time to zip it up compared to the ordinary one way zippers. Especially if you have gloves. Two way zippers sometimes do feel annoying to me, but the breathability and comfort advantages also cannot be overlooked. 

I also say comfort in addition to breathability in here because being able to keep the only upper half of the jacket zipper and the lower half unzipped, it's so much more comfortable when sitting down. 

The comfort difference in this regard is much more apparent with the longer jackets (mainly parkas), so don't expect day and night kind of difference with the Thorium in this regard since it's a rather shorter jacket. 

Packability

I'm a big fan of jackets that stuff into themselves. 

See the size of my packed Thorium AR (far left - see image). A packed Nuclei FL, a Beats Studio 3 and an Osprey Farpoint 40 for scale. Cerium LT packed size would be close to Nuclei FL. 

One thing to keep in mind in here though is that stuffing and unstuffing a jacket tens of thousands of times can take a toll on its insulating power over time. The ideal way to store a jacket is to hang it. 

Links: 

  • https://arcteryx.com/us/en/shop/mens/thorium-hoody
  • https://arcteryx.com/us/en/shop/womens/thorium-hoody
  • Thorium vs Cerium side by side comparison page on arcteryx.com: https://arcteryx.com/us/en/compare/X000006972-figment/X000006919-black

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:

  • Best Arc'teryx Jackets: My Top Picks
  • Best Patagonia Jackets: My Top Picks
  • Best Down Jackets: My Top Picks
  • Best Insulated Jackets: My Top Picks
  • Temperature Ratings of Best Insulated Jackets
  • CLO values: Explained, compared & plotted
  • Ultimate Size Guide to Arc'teryx
  • StormHood vs DropHood

Complete list:

  • All Arc'teryx Shell Jackets sorted by performance
  • All Arc'teryx Ski Jackets sorted by performance
  • All Patagonia Ski Jackets sorted by performance
  • All Patagonia Winter Jackets compared
  • All Patagonia Fleeces compared
  • All Patagonia Rain Jackets compared
  • All Patagonia Down Jackets compared

Synthetic Insulated Jackets

  • Arc'teryx Proton LT
  • Patagonia Nano Air
  • Arc'teryx Atom LT
  • Arc'teryx Atom AR
  • Patagonia Nano Puff
  • Patagonia Micro Puff
  • Arc'teryx Atom SL
  • Arc'teryx Proton FL
  • Arc'teryx Proton Hybrid Hoody
  • Arc'teryx Fission SV
  • Arc'teryx Dually Belay Parka
  • Arc'teryx Atom SL Anorak
  • Arc'teryx Kappa

Down Jackets

  • Arc'teryx Cerium LT
  • Arc'teryx Cerium SV
  • Arc'teryx Cerium SL
  • Arc'teryx Thorium AR
  • Patagonia Down Sweater
  • Arc'teryx Firebee AR
  • Arc'teryx Ceres SV

Parkas

  • Arc'teryx Thorsen
  • Arc'teryx Therme
  • Arc'teryx Camosun
  • Arc'teryx Patera
  • Arc'teryx Centrale
  • Patagonia Tres
  • Patagonia Vosque

Shell Jackets

  • Arc'teryx Beta SV
  • Arc'teryx Beta FL
  • Arc'teryx Beta AR
  • Arc'teryx Alpha AR
  • Arc'teryx Alpha SV
  • Arc'teryx Gamma MX
  • Arc'teryx Gamma LT
  • Arc'teryx Gamma SL

Ski Jackets

  • Arc'teryx Rush
  • Arc'teryx Rush IS
  • Arc'teryx Sabre LT
  • Arc'teryx Sabre AR
  • Arc'teryx Cassiar
  • Arc'teryx Sidewinder
  • Arc'teryx Macai

Fleece Jackets

  • Patagonia R1
  • Patagonia R2
  • Patagonia Synchilla
  • Patagonia Better Sweater

Wind Jackets

  • Arc'teryx Solano
  • Arc'teryx Nuclei FL
  • Patagonia Houdini
  • Patagonia Houdini Air
  • Arc'teryx Squamish
  • Arc'teryx Incendo
  • Arc'teryx Norvan SL
  • Arc'teryx Trino SL

Rain Jackets

  • Patagonia Torrentshell
  • Patagonia Torrentshell Insulated
  • Arc'teryx Beta SL Hybrid
  • Arc'teryx Zeta FL

Also see:

  • Arc'teryx vs Patagonia
  • List of Manufacturing Facilities of all Arc'teryx Jackets

Thank you for reading!

Filed Under: Down Jackets Tagged With: Arc'teryx Thorium, Arc'teryx Thorium AR, arcteryx, arcteryx insulated jackets, arcteryx jackets, jackets

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Hey, what's up? Canberk here. I try to approach outdoor gear from a scientific point of view. Here's more about me.

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