The Shasie is a large sustainment pack fit for three to five day missions. With external MOLLE webbing on the back, sides, and bottom of pack, there is ample room for supplemental accessory storage. The pack features a drawstring top closure and a buckle-fastened cap with velcro for IFF or other patches. A U-zip provides easy access to the entirety of the main compartment. The Shasie is compatible with multiple frame options.