Rubber soleBREATHABLE UPPER and ELASTIC SHOELACES: Made of breathable mesh, the shoes body are lightweight and ventilation, which make your feet breathe freely. Adjustable elastic shoelaces design makes it easier to put on and off, convenient for daily use.NON-SLIP and DURABLE SOLE: Soles feature excellent grip and resistance against slips. With 8 drainage holes at the bottom can ensure water flow out in time, keep your feet cool and comfortable.COMFORTABLE FIT INSIDE: The insole made of soft and comfortable fabric, which fits on the feet without grinding feet and enjoys every step.SUITABLE OCCASIONS: The multi-functional water shoes are suitable for beach, water park, water aerobics, surfing, beach volleyball, sailing, swimming, boating, kayaking, yoga etc.HAVE MORE FUN DURING ACTIVITIES with THE BEST water sport shoes: If for some reason water shoes isn??t working out for you, contact us for a full refund. We are so confident with the water shoes that a quickly responsive ??Our-job-is-to-make-you-happy?? Customer Service.