The Arc'teryx Bora AR 63 is a lightweight, versatile climbing helmet designed for technical mountaineering and ice climbing. It features a comfortable, secure fit and a durable construction. The Arc'teryx Bora AR 63: Built for rugged backcountry adventures, this durable backpack boasts a thermoformed Tegris® framesheet and RotoGlide™ hipbelt for unparalleled comfort and load-carrying capacity over varied terrain. Its breathable, custom-moldable hipbelt and shoulder straps deliver a personalized fit, while multiple access points and intelligent organization ensure effortless gear retrieval. The Bora AR 63 is the ultimate pack for demanding expeditions where durability, comfort, and adaptability are paramount.