Osprey Hydraulics Reservoir Material: TPU (thermoplastic polyurethane) Volume: [2L] 70 oz, [3L] 100 oz Valve: bite, magnetic Dimensions: [2L] 14 x 6 x 3 in, [3L] 15 x 7 x 3 in Claimed Weight: [2L] 10.6 oz, [3L] 10.9 oz