From Vionic, the Petra Leather Low Heel Pumps feature: Premium leather upper Slip-on styling Synthetic lining Refined square toe  Sculpted covered heel Built-in VIO MOTION Technology, featuring contoured arch support, with shock-absorbing cushioning and a deep heel cup to provide stability & forefoot flexibility  Rubber outsole Approx. 0.88" heel height Imported.   Styling Notes: It is recommended to wear your new pair for a few hours to allow your feet to adapt to the new support