Named for the butterflies that can travel 100 miles a day. This world-famous pack weighs a little and hauls a lot. Recycled Robic nylon resists cuts and tears. Ample pockets make organization a breeze. The Mariposa is sized for big trips, bear canisters, and serious mileage. An S-curve harness and load lifters provide even weight distribution, and you'll enjoy our signature PVT Frame+Belt: an aluminum, closed-shape frame and pivoting hipbelt that allow your pack to move with your natural gait for maximum comfort.