UPGRADED DESIGN - Easy to put on/off by the extended pull ring and double adjustable hook and loop fasteners. The raised uppers prevent falling off easily. WATERPROOF - Waterproof, breathable and soft shoe surface, make it perfect mud/rain/snow dog boots, suitable for hiking/running/walking, etc. SECURE - Added Front and rear reflective straps make sure your puppy easy to be found in night walk. RUGGED - Tough skid-proof sole provides stability and traction, protection from sharp thorns and hot pavement. SIZING (See Picture)- The size is based on the inner diameter of the shoe and measured by hand, please allow a little size error. You are welcomed to contact us for any questions about the products or change the size anytime.