Measures: 11'' x 14'' x 20''. 600 Denier PVC lined polyester construction. Pack has four expanding compartments that provide up to 35 liters of storage. Internal dividers and zippered pockets are built in the three largest compartments. The mesh padded back panel can hold up to a 2.5 liter hydration bladder (bladder not included). Reinforced contoured shoulder straps are constructed with mesh padding and are fully adjustable with hard plastic D-rings for attachments. Adjustable waist strap and sternum strap evenly distribute the weight of the load. MOLLE webbing throughout for attaching pouches and gear. Reinforced carry handle. Mesh ventilated padded back panel with Velcro top closure. Four quick release compression straps for expansion or consolidation. Velcro keepers for excess strap slack. Weight: 3.25 lbs. Color: Black.