Leather upper with contrast stiching. Hook-and-loop closure for a secure and adjustable fit. Padded insole is made of recycled carbon compound that gives added support and breathability. The exclusive Frog Shock System is a specially cushioned insole that absorbs the harsh impacts to the heel. The Comfort Last is anatomically angled. The outline adapts to the natural shape of your foot. Natural rubber outsole is durable and shock absorbent. 3 inch heel.