This waterproof mountaineering backpack features an Alpine Back System for stable loads close to the center of gravity. It includes stowable hip fins for comfort and climbing harness compatibility, TPU-coated zippers, taped seams, and durable fabric to keep contents dry. Ergonomic S-shaped shoulder straps reduce chafing. Compression straps secure skis or reduce pack size. Adjustable stabilizer straps and hip fins optimize load distribution.