From Vionic, the Orinda Calf Hair Animal Print Square Toe Ballet Flats feature: Calf hair upper Modern square toe Slip-on styling Synthetic lining Removable lightweight EVA insert VIO MOTION technology footbed Durable TPR outsole Rubber role Approx. 0.375" heel height It is recommended to wear your new pair for an hour to allow your feet to adapt to the new support. Imported.