Watershed Mississippi Waterproof Duffel (Blue) Keep your gear dry even when submerged! Easy-to-use ZipDry Seal presses shut like a freezer bag 840 Denier fabric with a heavy matte PU finish for abrasion resistance and overall strength. All seams are RF welded and guaranteed to be free of leaks. Even the smallest details are top quality: Duraflex side- release buckles and D-rings are combined with extreme-duty nylon webbing. Wide mouth for easy access on-the-go