Extreme weather conditions, rapidly changing conditions, diverse terrain, and the repetition of stillness and movement. That's the reality of high-alpine activities. The Alpha is a hard shell with high versatility to handle such situations. While reinforcing areas prone to abrasion with GORE-TEX Pro Most Rugged, it achieves weight reduction and improved breathability with GORE-TEX using the ultra-lightweight and highly abrasion-resistant Hadron surface material. The helmet-compatible StormHood protects the head without obstructing vision, and the integrated RECCO reflector supports the search and rescue of those in distress. Pit zips also enhance ventilation. By placing the proprietary Hadron LCP material in areas less prone to abrasion, weight reduction and improved breathability have been achieved. ARC’TERYX Alpha Jacket Men's Arc'teryx Alpha Jacket Previously known as the Alpha AR Jacket, the name was recently changed to Alpha Jacket. Size: S Color: Black Purchased in January 2025 at the Arc'teryx Shinjuku store. Almost new, only tried on. Bird Aid included, but personal information will be blacked out before sending.