Perfect for protecting your valuables and camping equipment from water, sand and dirt. A dry bag can be attached to the straps of a sup board or a kayak. Designed to be versatile, robust and long-lasting. The volume of the bag can be adjusted to the content by rolling. The closure should be rolled at least 2 to 3 times to achieve proper sealing. The material of the bag is PVC treated 190T nylon. Duraflex locks. 4 size options to choose from.