This low-profile pack helps you stay light and fast | SpecificationsCapacity / Reservior: 100 oz (3L) Mil Spec Antidote Short | Dimensions: 16 in x 10 in x 6 in (41 cm x 25 cm x 14 cm) | Cargo Volume: 200 cu in (3.28L) | Total Volume: 427 cu in (7L) | Weight w/ Empty Reservoir: 1.6 lbs (0.71 kg) | FeaturesExternal fill access | Top and bottom external pockets hold your essentials | 500D Cordura Fabric | Compatible with U.S.M.C. Pack System