NXT 32L innovative 32L rolltop backpack. The NXT is our most durable backpack yet, designed for extreme conditions in the mountains. It is made from two highly durable materials: first, the ultralight Challenge ULTRA 100X for exceptional abrasion and tear resistance, as well as longevity, featuring a water-repellent backing made from recycled polyester laminate. Second, it includes high-strength, expedition-tested 330D nylon Robic. The well-fitting, harness-compatible Dry Back Contact carrying system with ergonomically shaped, split shoulder straps provides high stability and load control while still allowing great freedom of movement and ventilation. This technical backpack comes with a range of features specifically tailored to the needs of alpine adventures: from various material and attachment loops to a helmet holder and ski strap attachment, as well as a generous two-way side access and a rope fixation.