Waterproof 5 Coil Nylon Separating Open ZipperWe carry two brands of waterproof zippers: YKK AquaGuard and a generic brand brand is noted in the colourway as Black YKK or Black Other. Both brands are intended for waterproof apparel or gear. All lengths are chain size 5. Polyurethane is laminated on the backside of a regular coil zipper, providing a waterproof barrier. The YKK brand has a shinier look while the other brand has a matte look. These zippers feature a reverse pull so that the coated