Crocs shoes are some of the most comfortable and versatile shoes you'll ever own. They mix the comfort of clogs with a space age material that has incredible benefits. The Patented Closed Cell Resin (PCCR) warms and softens with your body heat and molds to your feet. The European styling of the orthotic heel, built-in arch support and tarsal bar position your feet for ultimate foot comfort and health. With the heel strap in place, these are a perfect shoe for boating, diving, water sports and beachwear. Crocs shoes cover and protect your feet while providing proper ventilation. Air, sand, and water easily pass through the vents. Please avoid leaving Corcs where they will be exposed to heat or sun, such as a dish washer, washing machine, or hot car, as this can cause the shoes to shrink or warp. What Size Should I Buy?: These Men'S And Women'S Crocs Offer A Roomy run small And We Recommend Ordering A Size Up To The Next Largest Whole Size.