Arc'teryx Alpha IS Jacket - Men's

Arc'teryx Alpha IS Jacket - Men's
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Created for alpine, ice and expedition climbing, the Alpha IS is the single-layer solution for severe alpine environments. The GORE-TEX® outer delivers durable waterproof, windproof, breathable protection. Thermatek™, a DWR treated continuous filament synthetic, insulates without absorbing moisture. The combination results in a jacket providing comprehensive weather and thermal protection at a weight 18% lighter than the equivalent midlayer and hardshell system.


  • Waterproof
  • Windproof
  • Highly breathable—maintains comfort during aerobic activity
  • Highly durable
  • Taped seams for added weatherproofness
  • Additional layer of Coreloft™ Continuous 65 insulation for additional warmth
  • Highly hydrophobic DWR treated ThermaTek™ synthetic insulation
  • Generous cut for easy layering
  • Articulated patterning for unrestricted mobility
  • e3D Ergonomic 3-Dimensional patterning for enhanced comfort and mobility
  • Gusseted underarms
  • Helmet compatible StormHood™ with custom Cohaesvie™ cordlock adjusters
  • WaterTight™ external zippers
  • Full length Vislon No Slip Zip™ front zipper
  • Die-cut Velcro® cuff adjusters reduce bulk, and won't catch or tear off
  • Drop back hem
  • Adjustable hem drawcord
  • Cohaesive™ hem adjusters function as Hemlock™ to prevent jacket from slipping out from under a climbing harness
  • Internal chest pocket with zip
  • Two insulated hand pockets with zippers
  • Internal dump pocket
  • Stuff sack included
  • Weight: 610 g / 1 lb 5.5 oz
  • Fit: Regular Fit, Hip Length, with e3D patterning, Centre back length: 78 cm / 30.75 in
  • Activity: Ice Climbing / Alpine Climbing / Expedition


  • N40p-X 2L GORE-TEX® outer shell
  • ThermaTek™ DWR treated synthetic insulation
  • Coreloft™ Continuous 65 supplemental insulation - shoulders

TEAM BERG'S Serving snow sports enthusiasts since 1955
Berg's is the Best Awesome service! Nice folks. Highly recommend. - Kevin
Great experience Berg's was quick to answer my question online and so helpful with my order. I got a great deal and I'm thrilled with my skis! - Alyssa
Thanks so much!!! Thank You! As for me - You are great independent family owned store! I'm sure, I will shop here again! Big thanks guys! - Tomasz

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