polyester Rubber sole QUICK DRY:these kids sport water shoes with breathable and high stretch fabric,quick drying and comfortable to wear when your kids playing in the beach. ANTI-SLIP&DURABLE RUBBER SOLE:protecting your kids feet from being hurt by stone and other sharp objects. LIGHTWEIGHT&COMFORTABLE:these kids water shoes are super lightweight and flexible just like socks,providing great freedom and comfortable feeling for your kids. CONVENIENCE&FUN:these kids aqua water shoes with a dozens of funny pattern and styles,easy slip-on design make it convenient to wear and take off,lightweight and compressible,easy to fold and carry when you travel outside. Occasions:suitable for a wide range of occasions,such as:beach, swimming,pool,boating,kayaking,windsurfing,beach volleyball,aqua sport,jogging,walking,fishing,gardening,training.