Low-profile Composite MOLLE panel on front for secure attachment of accessory pouches 4 zippers on main compartment allow for multiple accesspoints to gear Full clamshell opening for easy access to gear ASIPS Radioattachment points hold comms securely with dual antenna ports Glasses,goggles and NVG pocket with external access Multiple drink tube exit ports --for routing drink tube over the shoulder or under an arm Lightweight,Shoulder harness and back panel provide better load distribution and comfortwhile carrying a heavy load Durable 500D Cordura Fabric Hydration Capacity: 100 oz / 3L Total Capacity: 20L (1220 cu in) + 3L Reservoir Total Weight: 1.9 lbs / .88 kg (pack only) Dimensions: 17.5 in x 8.5 in x 7.9in (44 cm x 22 cm x 20 cm) Fabric: 500D Ripstop Cordura fabric front panel,gusset and shoulder harness front side > 420D high density nylon on shoulderharness back side > 7 mm EVA foam shoulder harness 3 mm closed cell PE foam onback panel and inside hydration compartment