The overboard 5 litre black dry tube bag is built to last and protects small valuables or clothes wherever water dirt or sand is involved thanks to welded seams and our trusty fold seal system this dry sack is 100 waterproof suitable for quick submersion and even floats when dropped in water made of nylon coated pvc tarpaulin this dry sack is also super durable and easy to wipe clean meaning it can take a bit of a beating a fully adjustable and removable strap means you can carry this bag hands