Sea-Doo New PWC Boat Watercraft Carrier Dry BackPack Gear Bag Ogio, 4695620090 2-way adjustable sternum strap. Dual-density shoulder straps. Completely waterproof rolltop design. Strap containment systems ensures all straps are secured at high speeds. 20.5"H (rolled) X 10.5" W X 6.75"D (52cm X 27cm X 17cm) 160cu in/26L capacity.