From Vionic, the Tilly Leather Keyhole Bow Detail Ballet Flats feature: Premium leather upper Slip on styling Feminine keyhole and bow details Synthetic lining Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility Durable cushioned outsole Approx. 0.375" heel height Imported. Styling Notes: It is recommended to wear your new pair for a few hours to allow your fee to adapt to the new support.