These water socks are suitable for all types of water sports to keep your feet warm. The back of the sole features a special design that perfectly fits open-heel fins for diving. Both the toe and heel areas are reinforced with durable rubber, providing protection against wear and tear. They are made of soft, double-lined neoprene and have a practical zipper running from the sole to the ankle, making them easy to put on and take off. A thin seal under the zipper prevents water from entering. A strong, non-slip strip covers the entire sole.