The Sweetwater UL 43L Backpack is a lightweight pack designed for overnight or fastpacking trips. It features a running-vest-style harness that distributes weight securely and comfortably. Constructed with recycled nylon and abrasion-resistant materials, it includes oversized stretch-mesh stash pockets on the front, sides, and chest straps. The internal reservoir sleeve fits up to 3L for hands-free hydration. A removable ultralight rain cover and an expanding spindrift collar that fits 9-inch bear canisters provide added functionality.