Notice: Please refer to the measurement method and size chart, lager somatotype one size up, slimmer somatotype one size down. Breathable and Quick-Dry: The ihuan water shoes is made of mesh upper, honeycomb-shaped insole,mesh lining inside the sole, and drainage holes. These features form an excellent ventilation and drainage system for dry and cool feet. Durable and Anti-slip: The swim shoes feature a high-quality rubber sole,it's soft and shock-absorbing, protecting your feet. Its unique tread pattern design offers better grip, making the shoes durability and stability. Flexible and Comfortable: The mesh upper is skin-friendly and feels like socks . Wide-toe-box allows your toes to splay naturally. Adjustable shoelaces let you adjust for a perfect snug fit. Occasion:These amphibious shoes are the deal for wate aerobics diving, boating, rafting, windsurfing, snorkeling, waterfall hikes, wakeboarding, creek-trips, canyoneering–you name it, these shoes are up for it!