The Vionic Casandra Sandal is a stylish and comfortable shoe that incorporates a podiatrist designed biomechanical footbed. Featuring unique Three-Zone Comfort with Ultimate Arch Support built into every pair; the deep heel cup provides essential stability. Lightweight, flexible EVA midsole absorbs shock, reducing stress on feet, ankles and knees. Durable, rubber outsole with a patterned tread provides traction on a variety of surfaces.