Originally this Assault Pack was a component of the U.S. Army's RFI (Rapid Fielding Intiative) Equipment list, intended to transport 3 days worth of essential supplies and be carried on an everyday basis. By design, this is just about the ultimate "grab n' go" bag for your daily life. Support at the sternum, waist and shoulders helps spread out weight for long days on the hiking trail. Internal pockets provide organization for small gear, or even just your daily commute items. Pre-tested by U.S. soldiers, each Pack is sure sure to show its own individual history. Heavy-duty nylon construction MOLLE compatible, attaches to larger MOLLE Rucksack, or wear alone MOLLE/PALS attachment panels on outside for extra pouches and gear Large main compartment fits approx. 1,525-cu. in. Zippered front cargo pocket Small utility pocket with hook-and-loop closure Adjustable sternum, waist and quick-release shoulder straps Ports for hydration system (or radio antenna) Rear ID slot Drainage grommet holesNOTE: May have DRMO ink stamp, please see Additional Product Information on how to remove