MaterialMade of High quality CPE material,waterproof, non-slip.Elastic opening of this shoe covers give a secure fit on the ancleWaterproof & Non-slip: Waterproof design helps to protect your shoes from liquid and dust. The surface of the shoe cover has anti-slip particlesincreased the frictionshoe between the surface of the shoe cover and the floor , to prevent slipping.Application: Multi-purpose shoe coverings are suitable for shoes, boots, , athletic shoes or sneakers in various indoor and outdoor places such as family, hospital, garden, museum, workplace, indoor carpet floor, cars, etc.Specification: Packaged in a bulk pack of 100 blue shoe covers.Shoe covers are very flexible and soft, one size fits most, stretchable size about 40cm(15.7 inch) in length X 17cm(6.7 inch) in width Fits up to size 11 US Men and 13 US WomenSATISFACTION GUARANTEED: Offer you a 100% money back, excellent customer service, fast delivery and return services