This pack is a mid-sized frameless back pack with a ventilating back panel and silent zipper pulls. It has a detachable sternum strap and padded removable waist belt. The inside has a pouch to fit an optional 100 oz. HydraStorm hydration system. The pack has a main compartment, smaller cargo pouch and cargo pocket. This 3-day pack also includes sleeping bag straps. - Padded shoulder straps with D-rings for equipment attachment - Detachable, elasticized sternum strap with silent release buckle - Compartments are closed by YKK zipper and sliders with silent pulls - HydraStorm Hydration system compatible - Made of 1000 denier nylon - Dual side detachable padded waist belt - Drag/carry handle Dimensions: 6” X 13” X 20” Cubes: 2,240”