From Vionic, the Vivette Suede Buckle Hardware Strap Ankle Booties feature:  Suede upper  Side zip closure  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 Removable microfiber wrapped EVA insert for cushioning and support, featuring Meta Dome technology to ensure even contact and reduce pressure Synthetic outsole  Approx. 2.75" heel height  Imported.