Features of the Mountain Hardwear Alpine Light 50 Backpack Dyneema fabric is extremely durable, lightweight and waterproof, combined with taped seams creates a Highly weather resistant construction HardWave framesheet provides comfortable carry, but is removable to reduce weight Versatile engineered split webbing compression webbing distributes compression and secures Climbing gear and overloads Zippered top pocket and external side pocket keeps smaller gear handy while under-lid pocket stores additional gear 10mm lash points and ice axe Cradles create versatile tool attachment Streamlined and durable backpanel sheds Snow Front and rear grab loops Rope strap for external carry Padded shoulder straps with Dual Density foam for High level of comfort and support Hydration reservoir compatible 38mm Webbing hip belt Fabric Details Primary: 20% Dyneema Fiber, 55% Polyesyer, 25% Other Polymer Base: 15% Dyneema Fiber, 65% Polyesyer, 20% Other Polymer