Overboard Premium Waterproof Backpack - 25 Litres 100% Waterproof roll top Backpack | Floats safely if dropped in water Protect contents from dust, sand, dirt and water | Unique High Frequency welded construction 2 way closure system (top or side) | Padded shoulder straps and lumbar support Comfortable back panel with air-flow design | Adjustable sternum strap and waist belt Height: 49.5cm / 19.5" | Width: 34cm / 13.5" | Depth: 16.5cm / 6.5"