The BLACKHAWK! 3-Day Assault Pack is a frameless pack that features a detachable sternum strap and padded, removable waistbelt for extreme versatility. The inside of the pack has a main compartment with an additional separate small cargo pouch to fit an optional 100oz hydration bladder. The reservoir tube can be fed through the top of the pack as well. Features: Constructed of heavy-duty 1000D Cordura Nylon Fits any 100oz hydration bladder or reservoir (sold separately) Sleeping bags straps Padded shoulder straps with D-rings for equipment attachment Detachable, elasticized sternum strap with silent release buckle YKK Zippers with silent pulls Ventilating back panel Dual side-detachable padded waistbelt Reinforced carry/drag handle