From Vionic, the Kearny Leather Slip On Platform Sneakers feature: Leather upper Built-in VIO MOTION technology footbed Slip-on styling Synthetic lining Durable synthetic outsole Approx. 1.25" platform height Approx. 1.875" 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.