The two large compartments hold 24 - 12 oz. cans and ice, or other belongings. Adjusts easily to fit all 2, 3 and 4 seater personal watercraft and many motorcycles and snowmobiles. Constructed of durable 600-denier polyester with water-resistant coating. Under the water-repelling flap, there's a zipper to access each of the insulated compartments. A water-tight lining inside prevents leakage.