From Vionic, the Tide II Snake Print Embossed Leather Thong Sandals feature: Snake print embossed leather and fabric upper APMA Seal of ApprovalSlip on with soft woven toe post Fabric lining Vionic Technology is biomechanically designed to hug your arches and support your feet in comfort. Vionic sandals' built-in orthotic is shown to be effective in helping to treat heel pain (plantar fasciitis) Lightweight, flexible medium-density EVA midsole absorbs shock, reducing stress on feet, ankles and knees Durable rubber outsole with patterned tread helps improve traction Approx. 0.75" platform height Approx. 1.375" heel height It is recommended to wear your new pair for a few hours to allow your feet to adapt to the new support Imported.