The Gregory Pack Kiro 20L Backpack is a minimalist pack for day hiking. Designed to fit people of many shapes and sizes, this pack features a torso range of 16 to 21 inches, plus waists from 28 to 48 inches. Not only does the CloudControl hipbelt accommodate a wide range of sizes, but it's flexible and soft to follow your every move. Additional support comes from the 3D foam backpanel, with printed mesh for breathable comfort. The pack does not include a reservoir, but it is hydration-compatible, so load up only what you need, and soak up all nature has to offer throughout the day.