1-250D*250D PVC Waterproof bag 2-Material:250D PVC tarpaulin 3-Volume:15L/20L ... polyester yarn both side with PVC coating (or laminating)Advantage: Waterproof ,Non-heavy metal,Non-toxic, ... products making, suitcases&bags, tents,apron, truck covers,waterproof bags, sunshade and protection awnings, airbed, inflatboat ... picture showing: 250D*250D strong PVC tarpaulin waterproof bag for boat use,beach use