1680D carbo ballistic waterproof outer shell with alligator embossed waterproof synthetic leather. Muli-mount backrest system fits up to 31.5" circumference and 14" tall backrests. 5 external pockets with center organizer compartment in the rear and side insulated cooler pocket. Reflective Phoslite® for high visibility. Heavy duty nylon zippers. Reflective logo rain cover. Easy carry top handle. Zip-off hinged top bag for stand alone use. Removable Velcro comfort pillow. Top bag size: 13" x 9" x 5.75" Main bag size: 14.75" x 10.5" x 18.5"