Dual H2O Shoe CoverWet Weather Defender. Insulated Shoe Covers with Taped Seams and a Durable Waterproof Coating Comfortably Shield Your Feet from the Elements. Shimano Dual H2O Shoe Covers keep feet warm and dry even on the rainiest rides. Unique Optimal Panel Construction design eliminates the seam in the center of the instep, preventing water and cold air from getting in, while the water repellent YKK AquaGuard Zipper with Semi Auto Lock Slider adds further