Birkenstock Women's Granada Synthetic 100% Synthetic Synthetic sole Heel measures approximately 1" Cork and latex footbed designed to mirror the shape of a healthy foot and provide a natural walking environment More toe room allowing toes to move naturally, which promotes better balance and correct foot alignment from toe to heel Raised toe bar encourages natural gripping motion of your feet, exercises the legs and stimulates circulation Contoured footbed ensures even weight distribution and proper posture Deep heel cup cradles the heel and keeps natural cushioning right under the calcaneous (also known as the heel bone)