VIONIC with Orthaheel Technology Women's Milan Casual Flat Black Flat 8 M Leather Suede and leather upper. Fits medium widths. Decorative leather buckle trim across vamp.Decorative leather buckle trim across vamp.Decorative leather buckle trim across vamp. Suede upper. Covered Heel. Fits medium widths. Biomechanical Orthaheel orthotic technology with a Multi-density microfiber covered orthotic with EcoFresh. Flexible and lightweight rubber outsole with patterned tread helps improve traction. Invented by leading Australian podiatrist- Phillip Vasyli- this shoe features biomechanical orthotic technology that supports your feet and helps realign the lower legs- reducing over-pronation and associated aches and pains.