Double-layer material：The outer is made of waterproof Neoprene , and the Inner is made of Microfleece polyester .the soles of the shoes are made of wear-resistant kevlar fabric.Warm & WinterProof : The windproof SBR outer and warm Microfleece polyester material Inner protect your foot warmth, dryness and comfort on rainy days, snowy days and windy days.Safety protection: The unique reflective material on 3 sides improve visibility,Protect your safe riding at night. The edge treatment design, no need to worry about slippery feet during riding.Easy to Install and Remove: the waterproof zipper design enhances the waterproof function，in addition it easey to install or remove bicycle Shoe Covers.Size & Occasion：S/M/L/XL/XXL sizes to selectable, Unisex for men women. bike Shoe Covers Suitable for cycling,fishing, hiking, climbing , camping on windy or snowy days. it also can be used for daily usage when you are going out.