Size: S/ M/ L/ XL/XXL. S (sole length 10.4'', for youth), M (sole length 11.2''), L (sole length 11.8''), XL (sole length 12.6''), XXL (sole length 13.3''). Refer the size chart to make sure the cover is 1" longer than the sole length. We always offer Free Exchanges for sizing, but if you follow the sizing guide you can start using it on day one If you have any questions please contact us. We are here to help Durable material: made of water-resistant PVC fabric and non-slip rubber sole, anti-skid and reusable. Protect your shoes and boots from mud spattered and rain. Lightweight & Practical design: Designed to keep the wearer visible with the reflective logo on the rear of the covers, safe and dry in adverse weather conditions. Quality zippers and elastic band helps adjust tightness, flexible and comfortable to wear. Ideal for camping, farming, gardening, hiking, walking on rainy day, as outdoor activities use or daily use. Easily fold the shoe covers, convenient to carry and store with a mesh storage bag.