Rubber 【Design Description】Full-width printing on the upper. 【Material Description】Knitted upper (polyester) + non-slip thermoplastic rubber (TPR sole). 【Product Performance】The sole is made of TPR material,which has excellent breathability and slip resistance,with a thick insole,which is strong enough to protect your feet from gravel,stones and rough hot ground. Can better protect your feet from sharp objects. It protects your feet well even on hot beaches. The entire water shoe is lightweight,elastic,and flexes into small pieces,making it easy to put in a pack and take it with you. 【Applicable scene】Perfect for beach games, swimming, surfing,swimming pool,sailing,water park,boating,kayaking,beach volleyball,fishing,walking,car wash,vacation,Pilates and yoga,etc., especially for family outings! 【Accessory Construction】There is a pull-up webbing on the heel of the shoe,allowing you to put on the shoe easily. Comes with an insole for more comfort.