Vionic with Orthaheel Technology Womens Olivia Ballet Flat Black Patent Wide Size 8.5 Leather Features the same great Orthaheel Technology and fit youve come to love and expect! Flexible and lightweight rubber outsole with patterned tread helps improve traction Includes Orthaheel's multi-density microfiber covered orthotic with an EcoFresh topcover for support and a healthy foot environment 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 Removable Insoles