From Vionic, the Gemma Faux Shearling Mule Slippers feature: Faux shearling fabric upper Received APMA Seal of Acceptance Adjustable hook-and-loop strap Slip on Fabric lining Flexible EVA midsole absorbs shock, reducing stress on feet, ankles and knees Podiatrist-designed, bio-mechanically contoured arch support and deep heel cup to realign your stride and help correct pronation Durable synthetic outsole Approx. 0.125" platform height Approx. 1.375" heel height Imported.