Vionic Technology is biomechanically designed to hug your arches and comfortably support your feet. Vionic sandals' built-in orthotic is effective in helping treat heel pain (plantar fasciitis).* Lightweight, flexible medium-density EVA midsole absorbs shock, reducing stress on feet, ankles, and knees. Durable TPR outsole with patterned tread helps improve traction. Materials: padded, jersey-lined upper Care: Wipe off with damp cloth and air dry. Received APMA Seal of Acceptance True to Size