Battle the elements in the Arc'teryx Alpha Jacket, the climber's choice for ice and alpine challenges. Tailor-made for navigating through nature's extremes, it marries GORE-TEX PRO ruggedness with Hadron™ finesse for unbeatable durability and breathability. Stay visionary with a smart StormHood™, emergency-ready with RECCO® technology, and cool under pressure with strategic pit zips. 100% Nylon, Most Rugged 3L GORE-TEX PRO Fabric, Waterproof, Windproof, Adjustable Helmet Compatible StormHood™, RECCO® Reflector, Underarm Pit Zips, 2 Zip Chest Pockets, Adjustable Hem & Cuffs, Arc'teryx. Arc'teryx Women's Alpha Jacket in Black, Size Large | END. Clothing