From Vionic, the Vynn Leather  Dress Ankle Booties feature:  Premium leather upper  Side zip closure Square toe Synthetic lining  Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility Synthetic outsole  Refined block heel Approx. 4.6" bootie shaft height Approx. 9.5" boot shaft circumference Approx. 3.25" bootie heel height  Imported.