Features11. Waterproof and windproof for warmth: these shoe covers are made of polyurethane (PU) rubber and polyester, which is why they are waterproof and windproof. Please do not immerse them in water. With the seamless zip, the shoe covers can keep your feet warm and dry and protect them from the cold wind while cycling. 22. Long durability: the sole of the shoe cover is made of Kevlar fiber, which is very abrasion-resistant and durable. The zip can be used more than 10,000 times. The elastic thermal shoe covers can be put on quickly. 33. Mountain bike style. 44. Unique design: the reflective material on the heel provides safety when cycling at night. The hole on the sole can be adjusted by the hook and loop fastener, so they can even fit general ski mountain shoes. The sole is thicker and safer. 55. Multiple uses: the shoe covers are suitable for everyday use, e.g. when cleaning the house and outdoors. They are also ideal for cycling, hiking, fishing, mountaineering and other outdoor activities in the wind and snow. Whats more, a wet towel is sufficient for cleaning the winter shoe covers.SpecificationProduct name: cycling shoe coverMaterial: polyester, SBR, rubber, kelafSize: S, M, L, XL, XXLWeight: 115GPackage List1*cycling shoe cove