Keep water sand and dirt away from your prized possessions with the overboard 20 litre black dry tube bag a perfect medium size for clothes and smaller valuables thanks to welded seams and our trusty fold seal systemtrade this dry sack is 100 waterproof suitable for quick submersion and even floats when dropped in water made of nylon coated pvc tarpaulin our dry sack is built to last and easy to wipe clean meaning it can take a bit of a beating you can hold it by the sturdy grab hand