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The Arc'teryx Alpha Jacket masters the art of alpine versatility with its clever dual-zone GORE-TEX PRO design - bomber protection where you need it, featherlight breathability everywhere else. This technical masterpiece brings stealth-fighter innovation to the mountains, sporting a brain-friendly StormHood™ that actually moves with your head, pit zips for when things heat up, and a RECCO® reflector that keeps you findable when adventures go sideways.
N40D Most Rugged 3L GORE-TEX PRO
Contrast – Hadron® 3L GORE-TEX Fabric
Arc'teryx Nu Water Repellent Treatment
Two External Volume Pleated Chest Pockets with WaterTight™ Zippers and RS™ Zipper Sliders
GORE-TEX Pro – 3-layer GORE-TEX Pro utilizes a revolutionary multi-layer membrane system with a unique microstructure. The membrane is durably bonded to both the outer material and a specially developed robust inner lining.
Regular Fit – Provides freedom of movement with room for layers.
No-Lift Gusseted Underarms
Slight Drop Hem
Adjustable Hem Drawcord
Two External Volume Pleated Chest Pockets with WaterTight™ Zippers and RS™ Zipper Sliders
Internal Zippered Pocket
WaterTight™ Pit Zippers – These permit rapid ventilation when you start to heat up.
WaterTight™ External Zippers
RECCO® Reflector – Aids search and rescue in emergency situations.
Full Front Zip with Wind Flap
Custom TPU Zipper Pulls – Easy to operate and glove-friendly.
Reinforced Hood, Shoulders and Forearms
Strategically Placed Narrow GORE Seam Tape (8mm Width)
Micro-Seam Allowance (1.6mm) – Reduces bulk and weight.
Laminated High-Strength Hanger Loop
Die-Cut Velcro® Cuff Adjusters
Hadron® Contrast Face Fabric Zones – Provide weather protection for less weight and increased breathability.
Laminated Brim
Cohaesive™ Hood Adjustments for Ease of Use with Mittens or Gloves
Helmet Compatible StormHood™ – Designed for full weather protection. The StormHood™ can be cinched with one-handed drawcords, allowing it to rotate with the head without obscuring vision when turning from side to side. Front zipper height varies according to the intended use; protects chin and neck from wind, snow, and rain.
Breathability Rating (g) | Breathability Level | Activity Level |
0 - 10000 | Low to moderate breathability | Resort skiing & snowboarding / walking / low intensity activity |
11000 - 15000 | Moderate breathability | Resort skiing & snowboarding / hiking / moderate intensity activity |
16000 - 20000 | High breathability | Backcountry skiing & snowboarding / backpacking / moderate to high intensity activity |
21000+ | Very high breathability | Backcountry skiing & snowboarding / biking / high intensity activity |
Warmth | Description | Ideal Conditions |
Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |