From Vionic, the Aria 2.0 Suede Lugged Wedge Booties feature: Premium suede upper Water resistant Gore panel at ankle for additional fit and comfort Inside zip closure Back pull tab Synthetic lining Built in VIO MOTION Technology featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility Received APMA Seal of Acceptance Durable synthetic outsole Approx. 5.39" boot shaft height Approx. 10.87" boot shaft circumference  Approx. 0.75" platform height Approx. 2.25" wedge height Imported.