TOTALLY WATERPROOF: These rain boots cover is made of top polyester oxford material which is durable and totally waterproof, also it's quick to rinse after wearing. There is a waterproof layer behind the zipper, and you don't need to worry the water will penetrate from the zipper ANTI-SLIP SOLES: nonslip and wear resistant rubber sole provides stability for you to wear these when it rains and the roads are wet. The nonslip rubber bottom will perfectly ensure your safety. It also has a safety reflector on the back of the heel, perfect for you to use at night TIGHTLY FIT: The top of the boots have elastic straps, fits your leg snugly but not too tightly, it will not fall down from your leg. Sturdy Side Zipped & buckle closure for easy wearing and taking off FOLDABLE: Its light weight and easy to carry. The foldable design make it perfect stored in your backpack or hand bag. It's designed to keep your boots and shoes away from getting wet while walking, biking, motorcycling, also ideal for snowmobiling and any extreme outdoor activity AVAILABLE IN THREE SIZES: Size M: Sole Length: 28.5cm/11.2", Suggested for Men (US 6-7) or Women (US 7.5-8.5); Size L: Sole Length: 30.5cm/12", Suggested for Men (US 7.5-8.5) or Women (US 9-10); Size XL: Sole Length: 31.5cm/12.4", Suggested for Men (US 9-10) or Women (US 10.5-11.5)