These fully welded dry bags are made with 210D nylon fabric with TPU lamination on the outer face for durability, water shedding, and abrasion resistance. The clean profile and oval base resists rolling and allows for easy packing. The high strength fabric is UV resistant and won't crack in extreme cold. The waterproof TPU roll top closure does not wick moisture. Features the patent pending Field Replacement Buckle with stainless steel pins.