From Vionic, the Georgia 2 Flannel Lug Sole Penny Loafers feature: Rich grey flannel upper Leather penny keeper with stitch accents Slip-on  Synthetic lining Built-in VIO MOTION Technology, featuring contoured arch support and a deep heel cup to provide stability & forefoot flexibility Flexible EVA midsole absorbs shock, reducing stress on feet, ankles and knees Synthetic outsole Approx. 1.75" heel height Approx. 1.13" platform 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