Endorsed by the American Chiropractic Association. Microfiber is lightweight, solid-colored polyester. The exterior features two side slip pockets, and two horizontal zip pockets. The Front U-shaped zip compartment offers four slip pockets, three pen slips, and an ID window. The main compartment features one large slip and two mesh slip pockets. Padded laptop sleeve. Padded shoulder straps are shaped for optimum comfort on the body, and feature an adjustable chest strap buckle for weight distribution. Both the back panel and trolley sleeve are padded for comfort. Zip closures. Accommodates up to a 15" laptop. Capacity 30 L.