Vionic With Orthaheel Technology Womens Mallorca Wedge Sandal Black Size 9 Heel measures approximately 2.5 inches" A decorative buckle adds an element of interest while medial side gore provides greater comfort. 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 EVA outsole with wave-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.