The Arc'teryx Alpha SL Jacket is the pinnacle of alpine minimalism, designed for climbers who refuse to compromise between weight and weather protection. Weiging just 208g, this is the lightest GORE-TEX PRO shell ever engineered, making it an essential "just in case" layer for technical ascents and long mountain days. The secret lies in the revolutionary Hadron™ face fabric a sophisticated blend of nylon and polyarylate that offers durability far beyond its featherweight feel. Built with a PFAS-free ePE membrane, it provides a formidable barrier against the harshest environments while maintaining exceptional breathability. Whether you are tackling a fast-and-light alpine ridge or need a high-performance emergency shell that disappears in your pack, the Alpha SL sets a new benchmark for packable mountain protection. Functionality is at the heart of the Alpha SL, with every feature meticulously refined to shave grams without sacrificing utility. The helmet-compatible StormHood™ offers full coverage and superior peripheral vision, ensuring you stay protected during spindrift-heavy leads. Safety is subtly integrated with a built-in RECCO® reflector to assist search and rescue teams, while the minimalist design maintains a clean silhouette for harness compatibility. Sustainability is also front and center, featuring Bluesign® approved materials and dope-dyed fabrics to significantly reduce environmental impact. Finished with the iconic Arc'teryx bird and word logo, this shell includes everything you need and nothing you don't. It is the ultimate choice for weight-conscious alpinists who demand rugged, waterproof, and windproof performance in a package that fits in the palm of your hand. Arc'teryx Alpha SL Jacket Features GORE-TEX PRO ePE fabric free from intentionally added PFAS Hadron™ face fabric Helmet compatible StormHood 1 Zipped chest pocket Bluesign Approved Material Fit: Fitted Center Back length (Medium): 78cm Weight: 208g
