Don't let rainy weather get you down! These kids' waterproof welly boots feature a cushioned insole and adjustable buckle, for a comfortable and versatile fit. Material: 100% Rubber. Sole Features: Durable, Secure Grip. Fastening: Adjustable Belt, Pull-On. Pull Tab. Fabric Technology: Waterproof. Flat. Cut: Calf-Length. Design: Hedgehog.