From Vionic, the Uptown Mary Jane Nubuck Suede Flats feature: Nubuck suede upper Received APMA Seal of Acceptance Adjustable strap with hook-and-loop closure Synthetic lining Removable microfiber wrapped EVA footbed 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 Approx. 1.12" heel height Approx. 1" platform height Imported.