Capacity: 70 oz. (2.1 L) Cargo: 1282 cu. in. (21 L) The Cloud Walker is an affordable choice fr those new to hands-free hydration. Loaded with upgrades, including a front pocket organizer and a removable waistbelt design, this stable and comfortable system offers secure storage spaces and enough hydration for 2 to 3 hours. Features: OMEGAٙ HydroTanium Reservoir with lifetime warranty Independent Suspensionٙ Harness with Air Mesh keeps load stable and your back cool Front pocket organizer offers secure storage for electronics, cell phones, or other valuables Insulation keeps liquid cool for hours Full zip back panel access to reservoir makes loading easy Removable waistbelt and sternum strap offer added stability