L1 Theorem Alpha Jacket 2024 - Men's Snow Jacket

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Size: M
Sale price$299.40 Regular price$498.95
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2024 L1 Premium Goods Theorem Alpha Snow Jacket

The Alpha is L1's premier backcountry jacket in the theorem collection. The reliable 20k/20k waterproofing and 4-way stretch of ther NOVA-X 3-layer fabric will let you push the outer limits of exploration without sacrificing style or movement.


  • Regular Fit
  • 2-Way YKK AquaGuard® Water Repellent Center Front Zip with Placket Covered and Secured with Velcro closures
  • YKK AquaGuard® Water Repellent Zip Covered Welt Chest Pockets
  • YKK AquaGuard® Water Repellent Zip Hand Pockets
  • 20k Waterproofing
  • 20k Breathablity
  • Zip Underarm Vents
  • Shock Cord Front Hood, Back Hood And Hem Adjustment
  • Soft Chin And Neck Guard
  • Inner Storm Flap
  • Jacket to Pant Snap Away Powder Skirt
  • Elastic Insert At Powder Skirt For Better Movement
  • Adjustable Cuffs
  • Stretch Wrist Gaiter with Thumbhole
  • Inner Zip Pocket with Cord Exit And Cable Guide
  • Stretch Mesh Goggle Pocket
  • Zip Pass Pocket with Covered Welt in Left Sleeve Hem
  • Key Clip
  • Detachable Goggle Cloth
  • Made with recycled materials
  • PFC Free DWR coating
  • Fully Taped Seams


  • 4way Stretch Recycle Polyester 3L


  • Outershell: 87% Recycled Polyester, 13% Spandex
  • Backing: 100% Polyester
  • Membrane: 100% Polyurethane
  • Lining: 100% Polyester
  • Powder Skirt, Lower Sleeves: 100% Nylon Eco Yarn
  • Wrist Gaiters and Stretch Insert Powder Skirt: 80% Nylon, 20% Spandex
  • Goggle Pocket: 75% Nylon, 25% Spandex


  •  NOVA-X - With 20K waterproofing, 20K breathability, and wind protection, NOVA-X shields you from extreme mountain conditions while effectively protecting the fabric’s fiber. In addition, the multi-directional stretch reduces stress on the garment while offering premium comfort and the mobility needed to get where you are going.

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