‎3.5-4 US

Comfortable Breathable: The uppers of the water socks are made of diving material, flexible, breathable and quick drying, preventing your foot from fungal infection while providing you great freedom and comfortable feeling as wearing socks
Considerate Design: Premium Anti-slip thickened rubber sole protects you from slipping; A sturdy pull-on tab on the heel makes it a breeze to put on and take off; Smooth neck design prevents chafing for long time wearing
Full Protection: A thin removable insole inside the swim shoe gives extra cushioning and offers effective protection for your feet from being hurt by hot sand, pebbles and sharp rocks, no more burnt and hurt feet