OverBoard Pro-Sports 100% Waterproof Backpack Bag with Adjustable Chest and Sternum Straps

Roll-top 100% waterproof backpack - Class 3 - IP66. Floats safely if dropped in water. Super tough material on side and base. 2 way sealing system (traditional top or side compression). Protects contents from dust, sand, dirt and water. High Frequency welded construction. Padded shoulder straps and lumbar support. Ventilated back panel with air-flow design. Comfortable and buoyant light-weight straps with ventilation system. Adjustable waist strap and sternum strap with emergency whistle buckle. 2 x Reflective strips on the front and both shoulder straps. D-rings for multiple attachment options. Quick release elasticated webbing. Internal zip accessories pocket - H: 25cm x W: 21cm. 2 x Large outer elasticated mesh side pocket. Top carry handle