The Quicksilver Waterman Deep Tide 40L Backpack has been cleverly engineered as a submersible surf pack. With air tight, waterproof zippers and a high-frequency welded nylon, this 40L capacity bag is great for taking on a boat, kayak or when hiking through rivers and creeks. The design features one main zip compartment, an internal removable dry bag, with two side mesh pockets and a top carry handle. The adjustable and removable padded shoulder straps allow you to tailor the bag to your needs, plus the front gear strap attachment provides flexibility. With the Waterman printed logo, this Quicksilver bag is a smart investment to take outdoors for all kinds of water based activities!