Vionic Casandra Women’s Orthodic Sandal Leather TVW5542 Yellow Size 9 new with no tags Uppers: Leather Part of the Tide Heritage collection Feminine perforation and color choices Proven to effectively alleviate heel pain Lightweight, flexible medium-density EVA midsole absorbs shock, reducing stress on feet, ankles and knees Outsole: Durable Rubber Innovative podiatrist-designed Technology provides superior orthotic support, relief and stability which helps realign the feet back to their natural position Research supports Vionic's Technology success in reducing over-pronation, which can help relieve associated common aches and pains, such as heel pain plantar fasciitis, knee pain and lower back pain