The Mares Cruise Dry Bag Backpack - Light is a big but ultra lightweight dry bag that is completely watertight so you can trust that your clothing and valuables are completely dry. It is made from reinforced materials, with heat-sealed stitching and a quick closure system.This 75ltr bag features a front zippered pocket and has removable padded backpack straps to help you carry your equipment too and from the dive site in comfort.