Size: M (shoe length: 22-23 cm, shoe size: 37-38) L (Shoe length: 24-25cm, shoe size: 39-40) XL (shoe length: 26-27cm, shoe size: 41-42) 1. EXTRA COMFORT AND PROTECTION: Protect your feet from sand, cold or hot water, UV rays, stones, pebbles, shells and more. We offer water socks that provide comfort and protection for your chosen activity. Your day at the beach or pool will be especially enjoyable when you wear one of these socks. 2. VERSATILE: Non-slip sole and breathable material make our water socks ideal footwear. Water socks are great for low impact activities like water aerobics and pool swimming. 3. NEUTRAL DESIGN: The high quality fabric and neutral design of the water socks go with any casual or trendy swimwear, active wear and sailing/boating outfit. 4. ULTRALIGHT: The flexible/elastic material allows you to put the water socks on effortlessly. The socks are soft and quickly adapt to your foot shape, super light and flexible, feel free and comfortable to wear. Lightweight and compressible for easy packing, convenient for leisure or other sports activities. 5. OCCASION: You can use the shoes in many occasions, water park, stream, cruise, outing, water zumba, water therapy, water park staff, waterfall hike, etc. Take our shoes with you when you go on vacation.