The Pet Life Buckle Supportive PVC Waterproof Dog Sandals are composed of waterproof PVC and feature rubberized grips along the bottom soles for great traction. These dog shoes are essential while walking your dog against the hotter terrain preventing your dog's paws against the hot asphalt and in addition to slippage that may occur with older dogs. These pet shoes slip on and have hook and loop closures for easy on and off access. These shoes offer high support, whereas the support pressure is controlled by the tightness around the dog's ankles. Comes in a set of 4. Sizing Instructions: Measure the Sole of your Pet's Foot Extra-Small: 1.77"L x 1.46"W Small: 2.01"L x 1.65"W Medium: 2.36"L x 1.97"W Large: 2.64"L x 2.17"W # Pieces In Set: 4 Features: Comfort Grip Pet Intended For: Dog Base Material: 80% Polyvinyl Chloride, 20% Rubber Care: Wipe Clean Country of Origin: Imported