Orthaheel Vionic Marisa - Womens Leather Sandal Black - 11 Leather Rubber sole The canvas inlay on this flip flop style sandal is gold-flecked for just a touch of shine. Podiatrist-designed- biomechanical orthotic footbed with deep heel cup helps support and realign the feet back to their natural position. Lightweight- flexible EVA midsole absorbs shock to reduce pressure on the feet- ankles and knees. Durable rubber outsole with a patterned tread provides traction on a variety of surfaces. Clinically shown to help relieve common causes of plantar fasciitis- heel pain and knee pain- related to over pronation and flat feet. Has the American Podiatry Association Seal of Acceptance.