Features: 3 mm elastic neoprene with a waterproof coating retains heat and insulates in cold and wet conditions. The optimal anatomical panel construction (OPC) with offset seams enhances riding comfort and protects against water. The permanently welded flat seams at the front and back prevent moisture penetration. YKK zipper and Velcro closure at the heel make them easy to put on and take off. Compatible with the SPD system and most XC 2-hole shoes. Reflective elements provide better visibility in low light conditions. Durable reinforced toe cap. Materials: 70% rubber, 20% polyamide, 10% elastane. Waterproof cross-country MTB shoe covers with excellent insulation that keep your feet safe from cold, water, and mud.