An expedition pack built for the descent, the EX 55L skis as well as it carries. This is the only expedition ski pack on the market with back-panel access. It expands to 75L to carry your gear to basecamp, while collapsing down to 2 inches in depth to make your daily ski tours from camp as fluid as the ones at home. The EX 55L shares the DNA and features of our LF 30L & LF 40L packs, while adding volume and durability for your longest objectives. 55L extends to 75L with rolltop feature. 2 quick access stash pockets for no zip transitions. Back panel access with composite molded back sheet. 10mm of foam in the shoulder straps. Quick avy tool access. A-frame & diagonal ski carry. Vertical snowboard carry. Glove stash strap on shoulder strap. Ice tool carry that keeps picks enclosed. Hip pad pocket that actually fits your phone. Radio/hydration pass through. Drainage holes out of cinch top and avy tools pocket. Main fabric: Challenge Ultra 200tx, 2x more tear resistant and 8x more abrasion resistant than comparable fabrics. Backed by a waterproof film and is 100% recycled. Bottom fabric: Ultra 800tx for additional durability to stand up to the demands of expeditions and added load. Removable 7mm aluminum tubing. Weight: 1,250g.