Designed for longer endurance activities in winter, this pack has a separated waterproof compartment for wet gear, a sleeve for hydration bladder, and very stable, comfortable fit that lets you move comfortably while running, nordic skiing, hiking, or any high output adventure. Weight: 650. Pack weight (LB OZ)20.8 oz. Dimensions 45 x 25 x 14 cm. Pack volume (CI)1074. Pack volume (L)17.6. Pack weight (G)591. Material: Mesh.