HPO2Flex provides the ultimate in cushioned comfort. The unique triangle design offers multidirectional flex capability, conforming to the way you walk. Hand-antiqued and burnished full grain or tumbled leather uppers. Sheepskin and fabric lining. Sheepskin covered HPO2Flex sock lining provides under foot cushioning and comfort. Injection rubber outsole with leather welt, leather wrapped heel and hand stained leather shank areas for a high grade quality visual.