Carry 70 oz of water with comfort with Camelbak's 70 oz Blowfish Hydration premier cycling pack. Expandable cargo pack and Antidote reservoir enables 2 hours of use. This pack lets you carry multi tool, pump, spare tube, extra layers, lunch, MP3, phone, wallet, keys. BACK PANEL: Air Channel HARNESS: Air Mesh with Slider SternumStrap BELT: Removable 1 in 25 mm stability Expandable zip panel for extra gear Media pocket Bike tool organizer pocket Front and back reflectivity, blinker tab Reservoir Features: 14 turn easy openclose cap Lightweight fillport, dryer arms Center baffling and low profile design Patented Big Bite Valve, HydroGuard technology Insulated PureFlow tube Easy to clean wide mouth opening Torso Length: 19 Material: 210D Nylon, 70D Diamond Clarus 600D Poly with DWR 1000 mm PU coating Size: 19.5 x 8 x 7.5 in 49 x 20 x 19 cm Hydration Capacity: 70 oz 2 L Total Capacity: Open 1037 cu in 17 L Closed 732 cu in 12 L Weight: without reservoir 1 lb. 5 oz.