3-point suspension system-hook and loop seat post strap. 2 webbing-hook and loop straps that thread through the seat rails. The upper straps, when pulled tight, will compress your load securely into the underside of your seat, making for a solid, no-bounce ride. Single streamlined compartment opens vertically with a wide, easy-access, zippered opening and is completely lined with vinyl Supertex. 3.25x7x3.75 (in)-8x18x10 (cm). 2.2 oz-60 g. Dupont Cordura