This Item Features: • Hydration Capacity: 100 oz - 3 L • Total Capacity: 2258 cu in - 37L + 3L Reservoir • Total Weight (Pack and Reservoir): 4.9 lbs - 2.2 kg • Dimensions: 20 x 14 x 13.5 in - 51 x 35.5 x 34.5 cm • Torso Length: 16.5 in - 42 cm • Fabric: 500D Cordura® Fabric Front panel, gussets & shoulder harness > 420D High Density Nylon on shoulder harness back side, padded waist belt & back panel > 10mm EVA foam shoulder harness & padded waist belt > 5mm PE foam for hydration compartment divider