Life-C Waterproof Rain Shoes Cover Non-Slip Soles for Men & Women (Transparent, M) 1&gt; Waterproof Material: 100% waterproof PVC, durable and strong. Do not worry about the material, it is suitable for repeated and extended use, no rips and no tears. The soles are thick and strong enough to rub on the floor. You will be pleased with the durability of these rain shoe covers. 2&gt; Waterproof Zipper Design: this rain shoe cover has triangular connection under the zipper rope which can prevent water penetration. The zipper operates smoothly, and the elastic top ties work well to enclose pants inside the boot. 3&gt; Free Waterproof Bag: Our customers will get a free and useful PVC organizer as these shoe covers are appropriately compact and light weight that can be conveniently stored and take up very little space in the luggage. Just fold them up into the storage bag so they will not dirty the clothes in your suitcase. 4&gt; Keep Shoes Dry: this rain shoe cover is essential for car and office on daily use you are surprised with a sudden shower or snowstorm, also work in cold, snow, slush, mud, etc. Especially for keeping your shoes and feet dry when riding a bike in wet weather. Students can walk it to school without having the headache of wet shoes and socks. 5&gt; What Size Should I Order: Please refer to the size chart in product description. This rain shoe cover has size S M L XL XXL XXXL are available for both women and men. If you have no idea which size is suitable for you, you can measure the length of your feet before placing an order.