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Arc'teryxProton LT Insulated Jacket - Men's

Arc'teryxProton LT Insulated Jacket - Men's

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5 out of 5 stars
10 Reviews

Proton LT Insulated Jacket

You can rely on the Arc'teryx Proton LT Insulated Jacket to keep you warm whether you're climbing a frozen waterfall or exploring the backcountry on skis. The advanced Fortius Air 40 shell fabric balances wind, weather, and thermal protection while remaining highly breathable to keep you comfortable over a wide range of temperatures, conditions, and activity levels. Coreloft Continuous insulation traps and retains warmth, even in humid and wet conditions, making this jacket an ideal layering piece for high-output activities. A high collar provides extra coverage in cold and windy conditions, while stretch-knit cuffs and an adjustable hem help seal out cold. With an articulated design and gusseted underarms, the Proton LT Insulated Jacket will keep you warm and moving comfortably throughout many seasons.


  • Durable jacket that balances breathability and warmth in high output
  • Weather-resistant durable fabric offers protection from the elements
  • Air permeable insulation regulates a comfortable micro climate
  • High collar provides you with additional warmth and protection
  • Zippered chest and hand pockets securely store your small essentials
  • Dual hem adjustments seal out gusts when in adverse conditions
  • No Slip Zip technology prevents the main zipper from self-opening
  • Slim fit enables freedom of movement and light layering
  • Item #ARC00YW

Tech Specs

[face fabric] Fortius Air 20 (84% nylon, 16% elastane), [lining] Dope Permeair 20 (100% nylon)
Coreloft Compact 80 (100% polyester)
Center Back Length
2 zippered handwarmer, 1 zippered chest
Claimed Weight
Manufacturer Warranty
limited lifetime

Overall Rating

5 based on 10 ratings

Review Summary

5 Stars - 10 reviews
4 Stars - 0 reviews
3 Stars - 0 reviews
2 Stars - 0 reviews
1 Stars - 0 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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