Vionic with Orthaheel Technology Womens Olivia Ballet Flat Black Patent Wide Size 9 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