From Vionic, the Mabel Leather Slide Sandals feature: Leather upper with knot detail Slip on construction Synthetic lining Built-in VIO MOTION technology footbed with arch support, shock-absorbing cushioning and deep heel cup for stability Synthetic outsole Approx. 1.25" 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.