From Vionic, the Sadie Calf Hair Leopard Print Penny Loafers feature: Unlined upper in leopard print is soft and packable  Slip on styling Low stacked heel  Synthetic lining Built-in VIO MOTION Technology footbed with contoured arch support and a deep heel cup to provide stability Flexible EVA midsole absorbs shock, reducing stress on feet, ankles and knees  Durable rubber outsole Approx. 0.125" platform height Approx. 0.375 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.