600/300-denier polyester. Open interior. Oversized zippers and pulls used throughout. Double zipper pull on main compartment. Reinforced webbing tabs used on all zipper pulls. Reinforced stitching at key stress points. 2" wide adjustable shoulder strap. Flap pocket with zipper gives easy access for embellishing. Two large storage pockets under flap. Two large quick-release buckles. Zippered pocket on each side. Gusseted bottom. 21"W x 15-1/2"H x 5-1/4"D.