HPO2Flex provides the ultimate in cushioned comfort. The unique triangle design offers multi-directional flex capability, conforming to the way you walk. Hand-finished full grain leather or suede uppers. Genuine leather socklining with a perforated arch for breathability. Wheeled welted construction. Leather stack wrap on heel. 19mm (3/4'') heel elevation for walking comfort. Molded TPR outsole provides traction and durability.