A white interior laminate affords greater visibility, and hypalon lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon roll-top closure doesn't wick water, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver. TPU laminated fabric with 10,000 mm hydrostatic head Super strong and abrasion-resistant 420D Nylon fabric Waterproof, double-stitched, reinforced, tape sealed seams Waterproof hypalon roll-top closure does not wick moisture Oval base resists rolling - stays where you put it Features the patent-pending, 3/4 inch (20mm) Field Repair Buckle with stainless steel pins