Sizes: Please according to the size chart and choose the correct size, if your dog is in-between sizes, select the larger size.S( 5.5cm L x 5cm W/2.17" L x 1.97" W),M( 6cm Lx 5.5cm W/2.36" L x 2.17" W), L(7cm L x 6.5cm W/ 2.76" L x 2.56" W), XL( 8cm L x 7cm W/3.15" L x 2.76" W), XXL( 9cm L x 8cm W/3.54" L x 3.15" W). Waterproof Material: Dog shoes are waterproof and can keep dog paws comfortable, clean, dry and warm.The upper part of the dog boot is made of mesh material, which is high-quality and durable, soft and breathable, light weight . Although dog shoes are waterproof, dog boots cannot be used in deep water or sand Because water or fine sand may penetrate into the sewing needle hole. Skid-proof Soles: Rubber and PVC made soles with provide wear-resistant and anti-slip features, making your dogs dont slip on rainy or snowy days walking. Suitable for indoor and outdoor wearing.Providing well traction and offering all-round paw protection in wet and dry, hot and cold conditions Secure and Adjustable: Easy to put on / off, these dog shoes expands with a wide split seam opening and two adjustable and reflective straps to ensure a tight fit.Dog shoes have reflective strips on the belt, you/ others can see your dog immediately on the road. It ensures your dog's safety, especially when you walk or jog with him / her on the street at night. It's perfect for outdoors. Protect Dog's Paws: Wearing shoes for your dogs to protect their paws and nails from hot or cold pavement, hardwood floors, sharp rocks, broken glass, burr, sharp thorns, snow etc.Outdoor rain, snow, muddy roads, difficult to distinguish road conditions, wear shoes to avoid damage to the dog's paws.