This is the Stahlsac Storm 100% Waterproof Backpack Roll Top Construction Dry Bag Features: Completely waterproof roll top construction Reflective screen print Strap containment system ensures all straps are secured Quick-access pocket on the outside Comfortable ventilated back panel 2-way adjustable sternum strap Dual density shoulder straps for maximum comfort Removable high visibility inside liner Laptop sleeve and tablet sleeve Interior organizational panel with two zippered pockets Dimensions: 20.5"H x 10.5"W x 6.75"D Capacity: 26L (1,600 cubic inches) Colors: Black Weight: 2.5 lbs The durable, waterproof construction combined with a sleek and streamlined design makes this waterproof backpack the perfect fit for all your daily essentials and adventures.