CLARKS Women's Wave.Peak 100% Leather and synthetic Rubber sole Heel measures approximately 1 1/2" Platform measures approximately 1/2" Internal EVA heel wedge positions your feet for easier walking while allowing for the use of custom orthotics. Rocker profile heel kicker, concave heel and toe-off support at outsole help you maximize energy return and create a smooth, effortless forward motion with each step. Strobel construction sews the upper to the insole creating an incredibly flexible shoe.