rugged polyester. 15 x 8.5 x 6.25 inches. can be used four ways (as a waist pack, with carry handle, as an attachment to a modular pack or as a shoulder bag). one main compartment with dual mesh pockets with zippered closure. front accessory pouch with organizer sleeves. two side pockets with modular attachment points. heavy duty nylon coiled self repairing zippers. compression straps. modular attachment points on front and back side. removable shoulder strap. a versatile bag designed for multiple uses. hunter's coyote brown jumbo modular deployment bag.