600/300-denier polyester; 21"W x 15 1/2"H x 5 1/4"D; double zipper pull on main compartment; open interior; flap with two quick-release buckles; two zippered pockets under flap; zippered pockets on sides; 2" wide adjustable shoulder strap; oversized zippers and reinforced webbing tab pulls used; reinforced stitching at key stress points; gusseted bottom;