Durable, waterproof fleece lined nylon keeps paws warm and dry. Suede-leather sole, PVC toe cap and reflective tape give added protection. Adjustable Velcro straps and knit rib trim provide a secure fit. Durable, waterproof fleece lined nylon keeps paws warm and dry. Suede-leather sole, PVC toe cap and reflective tape give added protection. Adjustable Velcro straps and knit rib trim provide a secure fit. Comes as a set of four. To measure your dog's paw: Measure the front paw from Heel to nails but not fur. A snug fit is best or boots may slip off. To fit the boot on paw: Open the Velcro fastener. Next, bunch up the ribbed cuff & pull the boot over the paw (It helps to hold your dog's elbow while wiggling boot on with other hand). Pull Velcro strap SECURELY around boot at dog's ankle and press shut - cut excess strap if you wish. XXXS = less than 1.5 inch paw lengthXXS = less than 2.25 inch paw length XS = less than 2.75 inch paw length S = less than 3.25 inch paw length M = less than 3.75 inc Color: Black Size: Small