Each Hari Mari flip-flop is built with a super comfortable Memory Foam Toe™ (trademarked so you know it's legit). Say goodbye to those awkward first weeks of breaking in a new pair of flippy floppies, because these feature memory foam encased in soft nylon to help grip toes and reduce blisters. Textile upper, synthetic lining and sole. Whole sizes only! For 1/2 sizes, order next size up.