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This article does not go deep into the working principles of synthetic insulated jackets. If you're interested in reading more about that, check out these articles:
Best Synthetic Insulated Jackets: Quick Summary
Start here: https://arcteryx.com/us/en/shop/jacket-finder/
Arc'teryx is pretty much the highest quality brand when it comes to insulated and shell jackets. But where Arc'teryx shines the most is synthetic insulated jackets.
You will, for example, come across some experienced users arguing Rab making better down jackets than Arc'teryx. But almost everybody experienced with technical outerwear will agree that Arc'teryx is the brand that manufactures the best high end synthetic insulated jackets.
- In hindsight, I always disagreed with Rab making better down jackets than Arc'teryx. But ever since this absolute beast dropped on FW23, I'm even more convinced. With that said, I too agree that synthetic jackets of Arc'teryx are better than their down jackets.
The best picks here would be as follows:
- For stationary use:
- Nuclei SV (Men's)
- Atom AR (Men's - Women's - read review)
- How to choose between them: According to their temperature ratings and features given below. In the end though both are fantastic jackets you'll absolutely fall in love with.
- For high output activities:
- Proton LT (Men's - Women's - read review)
- Atom LT (Men's - Women's - read review)
- Nano Air (Men's - Women's - read review)
- How to choose between them: Proton LT and Atom LT (read the comparison of the two) are much more alike than they're different. If you need a bit more warmth, durability and abrasion/weather resistance, get the Proton LT. If you need more breathability, get the Atom LT (side mesh panels keeps you quite a bit ventilated). If you don't want an Arc'teryx and would like to get a Patagonia instead, then get the Nano Air. It too is a stunning jacket that won't disappoint. Make sure to check out Patagonia's Web Specials page in that case: https://www.patagonia.com/shop/web-specials.
- Also see: Atom LT vs Proton LT vs Nano Air
- If you want a hybrid jacket (synthetic insulated & shell):
- Proton Hybrid Hoody (Men's - Women's - read review)
- Beta Insulated Jacket (Men's - Women's - read review)
- Bonus: If you're planning to use it like a down jacket that can get wet:
- Nuclei FL (Men's - Women's - read review)
- Honorable mentions:
- Micro Puff (Men's - Women's - read review)
- Nano Puff (Men's - Women's - read review)
- How to choose between them: Micro Puff and Nano Puff (read the comparison of the two) are also much more alike than they're different - just like Arc'teryx's Atom LT and Proton LT. The difference between them however is even smaller than the difference of Proton LT and Atom LT. Micro Puff is a bit lighter, more packable, offers one more internal pocket and is just a little bit warmer (nothing noticeable though). Nano Puff, on the other hand, comes with a burlier face fabric, and hence is slightly more durable and weather/abrasion resistant than the Micro Puff. I however would probably get the one that I like the looks of the most. Again, make sure to check out Patagonia's Web Specials page in that case: https://www.patagonia.com/shop/web-specials.
Here's how they sort from the most to the least warm:
|Raw Name||Arc'teryx Nuclei SV||Arc'teryx Atom AR||Arc'teryx Beta Insulated||Arc'teryx Nuclei FL||Patagonia Micro Puff||Arc'teryx Proton LT||Patagonia Nano Puff||Patagonia Nano Air||Arc'teryx Atom LT||Arc'teryx Proton Hybrid|
|Name||Arc'teryx Nuclei SV (Men's)||Arc'teryx Atom AR (Men's - Women's)||Arc'teryx Beta Insulated (Men's - Women's)||Arc'teryx Nuclei FL (Men's - Women's)||Patagonia Micro Puff (Men's - Women's)||Arc'teryx Proton LT (Men's - Women's)||Patagonia Nano Puff (Men's - Women's)||Patagonia Nano Air (Men's - Women's)||Arc'teryx Atom LT (Men's - Women's)||Arc'teryx Proton Hybrid (Men's - Women's)|
|Temp (°F / °C)||5/-15||18/-8||21/-6||32/0||36/2||37/3||37/3||41/5||43/6||46/8|
|Best pick for||Warmest Arc'teryx synthetic.||Casual use in freezing weather.||Casual use in cold weather.||High output activities.|
|Pit venting?||No||Yes, mesh||Yes, zips||No||No||No||No||No||Yes, mesh||No|
|Stuffs into itself?||Yes||No||No||Yes||Yes||No||Yes||No||No||No|
|Two way zipper?||Yes||No||Yes||No||No||No||No||No||No||No|
|Size Chart||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Men's / Women's]||[Women's]|
|Fill Weight (grams)||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A|
|FP x FW||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A||N/A|
|Synthetic Insulator (SI)||Coreloft Continuous||Coreloft Continuous||Coreloft Continuous||Coreloft Continuous||PlumaFill||Coreloft Compact||PrimaLoft Gold Insulation Eco||FullRange||Coreloft Continuous||Coreloft Compact|
|SI Amount||180 g/m2 + 90 g/m2||120 g/m2 + 80 g/m2 + 60 g/m2||80 g/m²||65 g/m²||65 g||80 g/m2 + 60 g/m2||60 g||60 g||60 g/m²||40 g/m²|
|Face Fabric||Arato 15||30D Tyono||2L 40D Gore-Tex||Arato 10r||Pertex Quantum||Fortius Air 20||22D Polyester||33D Nylon ripstop||20D Tyono||Fortius™ Air 50|
|Activity||Climbing||All Round||All Round||Climbing||All Round||Climbing||All Round||All Round||All Round||All Round|
|Weight||600 g / 1 lb 5.2 oz||475 g / 1 lb||680 g / 1 lb 8 oz||325 g / 11.5 oz||298 g / 10.5 oz||375 g / 13.2 oz||363 g / 12.8 oz||318 g / 11.2 oz||375 g / 13.2 oz||365 g / 12.9 oz|
|Length (CB)||81 cm / 31.8 in||74 cm / 29.1 in||78.5 cm / 31 in||75 cm / 29.5 in||75 cm / 29.5 in||75 cm / 29.4 in||71.5 cm / 28 in||?||74 cm / 29.1 in||?|
It's also worth mentioning the Fission SV, Kappa and Dually Belay in here. They're all as good as (in some cases maybe even better than) their cousin Nuclei SV. It's pretty disappointing to see Arc'teryx discontinue these breathtaking products. No one knows if they're coming back or not.
It's difficult to understand this move because there really aren't lots of options in this area of the line-up (very cold synthetic wear with high weather resistance). So I hope Arc'teryx brings them back one day. I'm not losing all my hope yet because they did bring the once loved Nuclei FL back to life after many years. So it's not something that never happens!
Best Synthetic Insulated Jackets: Full table
Learn more about most of the popular synthetic insulated jackets out there. Pick "Synthetic Jackets" from the "Type" filter in the dropdown menu of the chart below.
|Name||Est. Temp (F/C)||Review||Pit venting?||Stuffs into itself?||Two way zipper?||Type||Fill Power||Fill Weight (grams)||Fill Volume (FP x FW)||Synthetic Insulator (SI)||SI Amount||Face Fabric||Activity||Fit||Weight||Length (CB)||Size Chart|
|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||[Women's]|
|Feathered Friends Khumbu||-17/-27||No||Yes||No||Down||900||378||340,200||Primaloft Gold||200 g||Pretex Shield XT||All Round||Regular||960 g / 2 lb 2 oz||?|
|Arc'teryx Ceres SV (Men's - Women's)||-15/-26||Review||No||Yes||Yes||Down||850||240||204,000||Coreloft||?||Arato 30||All Round||Regular||880 g / 1 lb 15 oz||86 cm / 34 in||[Men's / Women's]|
|Mountain Equipment K7 (Men's)||-13/-25||No||Yes||Yes||Down||800||300||240,000||N/A||N/A||30D Drilite||All Round||Regular||820 g / 1 lb 13 oz||76 cm / 30 in|
|Rab Positron Pro (Men's)||-13/-25||No||Yes||Yes||Down||800||300||240,000||N/A||N/A||40D Pertex Quantum Pro||All Round||Regular||740 g / 1 lb 10 oz||85 cm / 33.5 in||[Men's]|
|Arc'teryx Therme SV (Men's)||-11/-24||Review||No||No||Yes||Parka||750||211||158,250||Coreloft||60 g/m²||2L Gore-Tex||Around Town||Regular||1.072 kg / 2 lb 5.8 oz||96 cm / 37.75 in|
|Patagonia Grade VII (Men's)||-11/-24||No||No||Yes||Down||800||335||268,000||N/A||N/A||1.2 oz 15 & 20D Perfex Quantum||Around Town||Regular||743 g / 1 lb 10.1 oz||83 cm / 32.5 in|
|Arc'teryx Firebee AR (Men's - Women's)||-10/-23||Review||No||Yes||Yes||Down||800||225||180,000||N/A||N/A||Arato 7 & 10||All Round||Regular||680 g / 1 lb 8 oz||79 cm / 31 in||[Men's / Women's]|
|Mountain Equipment Exo (Men's)||-10/-23||No||Yes||Yes||Down||800||265||212,000||N/A||N/A||Nylon||All Round||Regular||770 g / 1 lb 11.2 oz||79 cm / 31 in|
|Arc'teryx Thorsen (Men's)||-7/-22||Review||No||No||Yes||Parka||750||192||144,000||Coreloft||60 g/m²||90D 2L Gore-Tex||Around Town||Regular||1.1 kg / 2 lb 5.4 oz||91 cm / 36 in||[Men's]|
|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||[Men's / Women's]|
|Mountain Equipment Li. Ec. (Men's - Women's)||-5/-20||No||No||Yes||Down||700||295||206,500||N/A||N/A||50D Drilite||All Round||Regular||822 g / 1 lb 13 oz||72 cm / 28 in|
|Arc'teryx Patera Long (Women's)||-2/-19||No||No||Yes||Parka||750||74||55,500||Coreloft||60 + 80 g/m²||2L Gore-Tex||Around Town||Regular||1.1 kg / 2 lb 6.8 oz||117.5 cm / 46.25 in|
|Rab Neutrino Pro (Men's - Women's)||-2/-19||No||Yes||Yes||Down||800||212||169,600||N/A||N/A||20D Pertex Quantum Pro||All Round||Regular||585 g / 1 lb 8.6 oz||77 cm / 30.3 in||[Men's / Women's]|
|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||[Men's]|
|Arc'teryx Centrale (Women's)||0/-18||Review||No||No||Yes||Parka||750||157||117,750||Coreloft||60 g/m²||N90p Nylon||Around Town||Regular||885 g / 1 lb 15.2 oz||95 cm / 37.5 in||[Women's]|
|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||[Men's]|
|Arc'teryx Cerium SV (Men's)||0/-18||Review||No||Yes||No||Down||850||162||137,700||Coreloft||80 + 140 g/m²||Arato 7 & 10||All Round||Regular||415 g / 14.6 oz||69.5 cm / 27.4 in||[Men's / Women's]|
|Arc'teryx Revet (Men's)||2/-17||No||No||Yes||Parka||750||?||N/A||N/A||20d nylon/spandex double weave||Around Town||Regular||755 g / 1 lb 10.6 oz||91 cm / 36 in|
|Arc'teryx Piedmont (Men's)||3/-16||No||Yes||Yes||Parka||750||218||163,500||N/A||N/A||Arato 10||Around Town||Regular||515 g / 1 lb 2.2 oz||82 cm / 32.25 in|
|Arc'teryx Fission SV (Men's - Women's)||3/-16||Review||No||No||Yes||Synthetic||N/A||N/A||N/A||Coreloft Continuous||90 + 65 g/m²||N80p-X Gore-Tex 2L||All Round||Regular||890 g / 1 lb 15.4 oz||81 cm / 31.8 in||[Men's / Women's]|
|Arc'teryx Alpha Lightweight (Men's)||3/-16||No||Yes||Yes||Down||850||117||99,450||Coreloft Compact||40 g/m²||Hadron 2L Gore-Tex Infinium||Climbing||Regular||540 g / 1 lb 3 oz||?|
|Outdoor Research Sup. Alp. (Men's - Women's)||3/-16||No||No||Yes||Down||800||182||145,600||N/A||N/A||30D Pertex Quantum Pro||All Round||Regular||825 g / 1 lb 13.1 oz||85 cm / 33.5 in||[Men's / Women's]|
|Arc'teryx Alessa Long (Women's)||3/-16||No||No||No||Parka||N/A||N/A||N/A||Coreloft||80 + 120 g/m²||N90p 2L Gore-Tex||Around Town||Regular||1.015 kg / 2 lb 3.8 oz||123 cm / 48.5 in|
|Patagonia Tres 3-in-1 (Men's - Women's)||3/-16||Review||No||No||No||Parka||700||118||82,600||N/A||N/A||5.5 oz polyester||Around Town||Regular||1.307 kg / 2 lb 14.1 oz||85 cm / 33.5 in||[Men's / Women's]|
|Arc'teryx Radsten Parka (Men's)||3/-16||No||No||No||Parka||N/A||N/A||N/A||Coreloft Compact||120 g/m²||NP100d Gore-Tex 2L||Around Town||Regular||745 g / 1 lb 10.3 oz||82 cm / 32.25 in|
|Rab Electron Pro (Men's - Women's)||5/-15||No||Yes||Yes||Down||800||180||144,000||N/A||N/A||20D Pertex Quantum Pro||All Round||Regular||525 g / 1 lb 2.5 oz||74 cm / 29 in||[Men's / Women's]|
|Arc'teryx Therme Parka (Men's)||5/-15||Review||No||No||Yes||Parka||750||120||90,000||Coreloft||60 + 80 g/m²||P75d Polyester||Around Town||Regular||991 g / 2 lb 3 oz||85 cm / 33.5 in||[Men's]|
|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||[Men's]|
|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||[Men's / Women's]|
|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||[Men's / Women's]|
|Arc'teryx Patera (Women's)||5/-15||Review||No||No||Yes||Parka||750||58||43,500||Coreloft||60 + 80 g/m²||2L Gore-Tex||Around Town||Trim||867 g / 1 lb 14.6 oz||93 cm / 37 in||[Women's]|
|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||[Men's / Women's]|
|Arc'teryx Kappa (Men's)||7/-14||Review||No||No||Yes||Synthetic||N/A||N/A||N/A||Coreloft Continuous||140 g/m²||N70p Gore Thermium||All Round||Regular||755 g / 1 lb 10.6 oz||80 cm / 31.5 in||[Men's]|
|Arc'teryx Prema Down Coat (Women's)||7/-14||No||No||Yes||Parka||750||92||69,000||N/A||N/A||Nylon||Around Town||Regular||794 g / 1 lb 12 oz||117 cm / 46.1 in||[Women's]|
|Arc'teryx Radsten Insulated (Men's)||7/-14||No||No||No||Parka||N/A||N/A||N/A||Coreloft Compact||120 g/m²||NP100d Gore-Tex 2L||Around Town||Regular||715 g / 1 lb 9.2 oz||73 cm / 28.75 in|
|Rab Microlight Alpine (Men's - Women's)||7/-14||No||Yes||No||Down||700||153||107,100||N/A||N/A||30D Pertex Quantum||All Round||Regular||466 g / 1 lb 0.5 oz||72 cm / 28.5 in||[Men's / Women's]|
|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||[Men's]|
|Feathered Friends Eos||8/-13||No||Yes||No||Down||900||105||94,500||N/A||N/A||Pertex Quantum||All Round||Regular||306 g / 10.8 oz||?|
|Arc'teryx Thorium AR (Men's - Women's)||8/-13||Review||No||Yes||No||Down||750||130||97,500||Coreloft||80 + 140 g/m²||Arato 30||All Round||Regular||490 g / 1 lb 1.3 oz||72 cm / 28.3 in||[Men's / Women's]|
|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||[Men's / Women's]|
|Arc'teryx Macai LT (Men's)||8/-13||Yes, zips||No||No||Down||750||49||36,750||Coreloft Compact||60 g/m²||N40p-X 3L Gore-Tex||Ski/Snowboard||Regular||855 g / 1 lb 14.2 oz||74 cm / 29.1 in|
|Arc'teryx Seyla (Women's)||8/-13||No||No||Yes||Parka||750||92||69,000||N/A||N/A||Arato 10||Around Town||Regular||507 g / 1 lb. 1.9 oz.||87 cm / 34.4 in||[Women's]|
|Patagonia Fitz Roy (Men's - Women's)||8/-13||No||Yes||No||Down||800||128||102,400||N/A||N/A||20D Nylon||All Round||Regular||632 g / 1lb 6.3 oz||74 cm / 29 in||[Men's / Women's]|
|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||[Men's]|
|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||[Women's]|
|Patagonia City Storm Down (Men's - Women's)||12/-11||No||Yes||No||Parka||700||191||133,700||N/A||N/A||4.2 oz polyester||All Round||Regular||468 g / 16.5 oz||91 cm / 36 in|
|Patagonia Jackson Glacier (Men's - Women's)||12/-11||Review||No||No||Yes||Parka||700||141||98,700||N/A||N/A||3.6 oz 50D polyester||Around Town||Regular||880 g / 1 lb 15 oz||79 cm / 31 in||[Men's / Women's]|
|Arc'teryx Sensa (Women's)||14/-10||No||No||Yes||Parka||N/A||N/A||N/A||Coreloft Compact||120 g/m²||NP100d Gore-Tex 2L||Around Town||Relaxed||785 g / 1 lb 11.7 oz||86 cm / 34 in|
|Patagonia Hi Loft Down (Men's - Women's)||14/-10||Review||No||Yes||No||Down||600||177||106,200||N/A||N/A||1.4 oz 30D polyester||All Round||Regular||540 g / 1 lb 3 oz||76 cm / 30 in||[Men's]|
|REI Magma 850 Hoodie 2.0 (Men's - Women's)||14/-10||No||Yes||No||Down||850||120||102,000||N/A||N/A||Pertex mini ripstop nylon||All Round||Regular||340 g / 13.75 oz||74 cm / 29.25 in||[Men's / Women's]|
|Arc'teryx Beta Insulated Coat (Women's)||16/-9||Review||No||No||Yes||Synthetic||N/A||N/A||N/A||Coreloft||80 g/m² + 120 g/m²||2L 40D Gore-Tex||Around Town||Regular||600 g / 1 lb 5.2 oz||?|
|Arc'teryx Atom AR (Men's - Women's)||18/-8||Review||Yes, mesh||No||No||Synthetic||N/A||N/A||N/A||Coreloft Continuous||120 g/m2 + 80 g/m2 + 60 g/m2||30D Tyono||All Round||Regular||475 g / 1 lb||74 cm / 29.1 in||[Men's / Women's]|
|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||?||[Men's / Women's]|
|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||[Men's]|
|Arc'teryx Agrium (Men's - Women's)||21/-6||No||Yes||No||Down||850||117||99,450||N/A||N/A||Arato||All Round||Regular||365 g / 12.9 oz||75 cm / 29.5 in|
|Patagonia AlpLight Down (Men's - Women's)||21/-6||No||Yes||No||Down||800||100||80,000||N/A||N/A||0.8 oz 10D polyester||All Round||Slim||270 g / 9.5 oz||74 cm / 29 in||[Men's]|
|Arc'teryx Beta Insulated (Men's - Women's)||21/-6||Review||Yes, zips||No||Yes||Synthetic||N/A||N/A||N/A||Coreloft Continuous||80 g/m²||2L 40D Gore-Tex||All Round||Regular||680 g / 1 lb 8 oz||78.5 cm / 31 in|
|Patagonia Topley (Men's)||23/-5||No||No||Yes||Down||700||172||120,400||N/A||N/A||6 oz polyester||All Round||Regular||1.133 kg / 2 lb 8 oz||77 cm / 30.5 in||[Men's]|
|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||[Men's]|
|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||[Men's / Women's]|
|Patagonia Down Sweater (Men's - Women's)||23/-5||Review||No||Yes||No||Down||800||150||120,000||N/A||N/A||1.4 oz 20x30D polyester||All Round||Regular||428 g / 15.1 oz||67 cm / 26.25 in||[Men's / Women's]|
|Arc'teryx Ralle Parka (Men's)||25/-4||No||No||Yes||Parka||N/A||N/A||N/A||Coreloft||80 g/m²||2L 40D Gore-Tex||Around Town||Regular||735 g / 1 lb 9.9 oz||?|
|Patagonia Silent Down (Men's - Women's)||26/-3||Review||No||No||No||Down||700||109||76,300||N/A||N/A||2.2 oz polyester||Around Town||Regular||585 g / 1 lb 4.7 oz||74 cm / 29 in||[Men's / Women's]|
|Arc'teryx Therme Insulated (Men's)||26/-3||Review||No||No||No||Synthetic||N/A||N/A||N/A||Coreloft Compact||40 g/m²||2L Gore-Tex||Around Town||Regular||960 g / 2 lb 1.9 oz||73 cm / 28.75 in|
|Arc'teryx Cerium (Men's - Women's)||26/-3||No||Yes||No||Down||850||113||96,050||Coreloft||80 + 100 g/m²||Arato 15||All Round||Trim||335 g / 11.8 oz||?|
|Mountain Hardwear GW/2 (Men's - Women's)||28/-2||No||Yes||No||Down||800||85||68,000||N/A||N/A||10D Ripstop Nylon||All Round||Trim||250 g / 8.8 oz||70 cm / 27.5 in||[Men's / Women's]|
|Arc'teryx Cerium LT (Men's - Women's)||28/-2||Review||No||Yes||No||Down||850||102||86,700||Coreloft||80 + 100 g/m²||Arato 10||All Round||Trim||305 g / 10.8 oz||72 cm / 28.3 in||[Men's / Women's]|
|Arc'teryx Nuclei FL (Men's - Women's)||32/0||Review||No||Yes||No||Synthetic||N/A||N/A||N/A||Coreloft Continuous||65 g/m²||Arato 10r||Climbing||Trim||325 g / 11.5 oz||75 cm / 29.5 in||[Men's / Women's]|
|Patagonia DAS Light (Men's - Women's)||34/1||No||Yes||Yes||Synthetic||N/A||N/A||N/A||PlumaFill||65 g||0.8-oz 10-denier Pertex Quantum Pro||Climbing||Regular||320 g / 11.3 oz||77 cm / 30.5 in|
|Patagonia Micro Puff (Men's - Women's)||36/2||Review||No||Yes||No||Synthetic||N/A||N/A||N/A||PlumaFill||65 g||Pertex Quantum||All Round||Trim||298 g / 10.5 oz||75 cm / 29.5 in||[Men's / Women's]|
|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||[Men's]|
|Arc'teryx Proton LT (Men's - Women's)||37/3||Review||No||No||No||Synthetic||N/A||N/A||N/A||Coreloft Compact||80 g/m2 + 60 g/m2||Fortius Air 20||Climbing||Trim||375 g / 13.2 oz||75 cm / 29.4 in||[Men's / Women's]|
|Patagonia Nano Puff (Men's - Women's)||37/3||Review||No||Yes||No||Synthetic||N/A||N/A||N/A||PrimaLoft Gold Insulation Eco||60 g||22D Polyester||All Round||Regular||363 g / 12.8 oz||71.5 cm / 28 in||[Men's / Women's]|
|Arc'teryx Norvan SL Ins. (Men's - Women's)||39/4||No||Yes||No||Synthetic||N/A||N/A||N/A||Coreloft Compact||40 g/m²||Gore-Tex ShakeDry||Running||Trim||270 g / 9.5 oz||71.5 cm / 28.1 in||[Men's / Women's]|
|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||?||[Men's / Women's]|
|Arc'teryx Atom LT (Men's - Women's)||43/6||Review||Yes, mesh||No||No||Synthetic||N/A||N/A||N/A||Coreloft Continuous||60 g/m²||20D Tyono||All Round||Trim||375 g / 13.2 oz||74 cm / 29.1 in||[Men's / Women's]|
|Arc'teryx Cerium SL (Men's - Women's)||43/6||Review||No||Yes||No||Down||850||58||49,300||Coreloft||40 + 100 g/m²||Arato 7||All Round||Trim||215 g / 7.6 oz||69 cm / 27.2 in||[Men's / Women's]|
|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||?||[Women's]|
|Arc'teryx Proton FL (Men's)||48/9||Review||No||No||No||Synthetic||N/A||N/A||N/A||Octa Loft||94 g/m²||Fortius Air 20||Climbing||Trim||323 g / 11.4 oz||77 cm / 30.4 in||[Men's / Women's]|
|Arc'teryx Atom SL (Men's - Women's)||52/11||Review||Yes, mesh||No||No||Synthetic||N/A||N/A||N/A||Coreloft Compact||40 g/m²||20D Tyono||All Round||Trim||245 g / 8.6 oz||72 cm / 28.3 in||[Men's / Women's]|
|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||[Men's / Women's]|
|Arc'teryx Monitor Insulated (Women's)||Testing||No||No||Yes||Parka||N/A||N/A||N/A||Coreloft||80 + 100 g/m²||40D 3L Gore-Tex||Around Town||Oversized||645 g / 1 lb 6.8 oz||93 cm / 37 in|
|Arc'teryx Coelle (Women's)||Testing||No||No||Yes||Parka||N/A||N/A||N/A||Coreloft||80 + 140 g/m²||40D 2L Gore-Tex||Around Town||Regular||460 g / 1 lb 0.2 oz||93 cm / 37 in|
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.
- 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.
Common user profiles and corresponding best synthetic insulated jackets
"I'm looking for the best synthetic insulated jacket for high output activities."
If you'll be climbing or bouldering more than half the time with this jacket, then get the Proton LT as you'll need more abrasion resistance. If it's less than half the time, then get the Atom LT since you can sacrifice some abrasion resistance to add some more breathability in return.
- 13 Mar 2023: I've been to Pfander and floodplain forests with my Nuclei SV
- 13 Dec 2022: Arc'teryx Alpha Parka Review: The most impressive jacket of all time
- 8 Dec 2022: Arc'teryx ReGEAR: OutdoorCrunch exclusive promo code!
- 7 Nov 2022: 2023 Thorium Hoody is in - as well as the new Thorium Parka (yes, parka)
- 2 Nov 2022: Beta Insulated Jacket: Pit zips AND two way zipper!
- 7 October 2022: Proton Hybrid Hoody is live! The ultimate do it all?
- 5 October 2022: DropHood vs StormHood: Pros/cons and best uses
- 5 September 2022: Reviewing Arc'teryx Fall Winter 22/23 Gear
- 5 August 2022: 5 things all Arc'teryx newbies should know
- #A sidenote here: Arc'teryx's PDF guide to jackets is GOOOLLLLDDDDD. Absolutely check that out too if you're interested in buying one.
Nano Air is also a stunning piece. If you prefer Patagonia over Arc'teryx, then you can absolutely get that with peace of mind.
"I need a casual jacket around town. I want it to be warm, waterproof, windproof, stylish and comfortable."
If it goes down to 5 deg F /-15 deg C, get the Nuclei SV. If the coldest you'll be wearing the jacket won't be lower than 18 deg F / -8 deg C, then get the Atom AR.
"I need a streamlined, lightly insulated, casual, packable jacket. I'm planning to use it as if it's a down jacket that can get wet."
Nuclei FL is your jacket 100%.
"I need a jack of all trades, master of none kinda jacket. I want it to accomplish casual and active use at the same time. What would you have for me?"
Well, there's no one single jacket that can replace the entire benefits of a insulated + shell combo like the most popular Proton LT + Beta AR. But Arc'teryx still does have alternatives for you in here, and they're very, very good. This is the closest a standalone jacket can get to a layering.
If you'll be using the jacket casually around town more than half of the time, then I'd get the Beta Insulated.
If it's high output activities most of the time instead of casual use, then I'd recommend the Proton Hybrid. Yes, Proton Hybrid does not have pit zips or two way zippers (the two foundations of a breathable jacket), but you'll wish having them less than you do with other jackets because it's very lightly insulated. It's one of the 3 least insulated Arc'teryx jackets of all time, besides the Proton FL and Atom SL.
"I like the preppy and/or classical family photo look and want something casual. I won't be active with it most of the time. Maybe never."
Look up Micro Puff and Nano Puff and get the one that you like the looks of the most.
Love all the comparisons you’ve put together o the site, and this beautiful table of warmth estimates. Would love to hear your thoughts (and warmth estimates) on the Proton FL and Nuclei FL. I’m in the mild weather range most of the time, and curious to see how these stack up against the cerium and proton options that hovered around the 0C mark on your table.
Canberk Koksal says
Glad you liked it Jacob 🙂
I’m pretty glad to see the return of Nuclei FL. It’s a fantastic series of insulated shell jackets and don’t really have a substitute in the entire Arc’teryx line up.
Although they did trim down the fill compared to the previous version, it’s still significantly warmer than Proton FL.
Chart is updated with both jackets. 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 is helpful.
Love the site and the comparisons of all the different gear. I would love to hear your opinion on the gear “problems” i face at the moment:
I own a macro puff hoody, i use them in dry weather for low activity cold-hikes, choice depending on temps. On ski holidays the macro is ideal for apres ski and extra warmth post – slopes.
I use a stretch rainshadow as my primary rain protection shell and only comes out when it rains. It is packable so it comes easy.
For hikes and walking in belgium or other higher output activities depending on temperatures and weather i use the atom Lt or a gamma Lt.
Next i have a micro puff, i bought it initially for its packability. When on holidays or hikes or… it stows away very nicely. But i am tending to sell it, because of the bulkier fit, the thin fabric and the special patern that makes it a garbage bag sometimes. Also i want my products to last and because its stowed away most of the times..
Next september i will summit mount meru in tanzania so i will still need something packable to throw on when i stop for the day. When on the climb i will wear the atom if necessary temperature wise ( i need something packable that works and fits great with good warmth value, not as much as the macro puffy).
With this in mind would you:
– still keep the micro puff, its a niche product but still the best aNd accept the reasons why you like it less.
– replace it by the cerium Lt (down and packable and maybe more durable)
– replace it by cerium sl (not as warm as micro puff level?)
– replace it by atom ar (if only it could be stuffed as the products above)
Thanks for reading man!
Love the site, the info etc.
I own a micro puff hoody, mainly because of its packability. I wear it when it’s dry on its own as a outer layer or under a rain shell when raining. Mainly for walking, hiking and general use. I own a macro puff for the case of ultra low temperatures.
Now i dont like the shiny garbage like feel of it, the very thin shell and i am a bit worried about long term durability. The fit could be better for my type. But hey it still a good jacket!
But i would pass it on en go for alternative (i go for mount meru in september so i ll need an insulator thats highly packable and gives warmth when stopping the active part)
So would you suggest:
Atom ar hoody (but not packable, i own an Lt for the active colder temps)
Cerium sl (to less warmth?)
Great information. I’m wondering where you think the LEAF Cold WX Jacket SV Men’s fall in the chart?
Glad you found it helpful Jonathan 🙂 Thank you for taking the time to comment!
Unfortunately, not enough information is available for the LEAF Cold WX Jacket SV – as it’s the case with many Arc’teyrx LEAF products. So it’s difficult to make an estimate.
Christopher Sayers says
One of the best gear blogs I’ve ever read. Keep up the good work! Where do you think the new Patagonia DAS Light Hoody stands in this line-up?
Ron Prud'homme says
Hello, I really enjoyed reading your articles and you were able to clarify a lot of uncertainties I had about the myriad of options offered by Arcteryx!
Could I have your insight regarding the following: I am looking for an all around casual winter jacket for the Ottawa, Ontario area. I am currently considering the Fission for its versatility and clean/simple design and Therme for the same reasons (I am not in love with the Therme collar though) – i know these jackets differ a bit, I want a nice warm simple « grab-and-go » winter jacket or parka that will allow me to take brisk walks, low intense skating once in a while and other low output activities.