From Vionic, the Etna Leather Slide Sandals feature: Premium cross-band leather upper Trend-right footbed sandal  Slip-on design Synthetic lining Cushioned EVA insole VIO MOTION technology footbed with built-in arch support and deep heel cup Lightweight, flexible midsole Durable synthetic outsole Approx. 0.75" platform height Approx. 1.125" heel height Imported. *It is recommended to wear your new pair for a few hours to allow your feet to adapt to the new support.