This closed back clog provides shock absorption and flexibility. Withstands surfaces of extreme heat and cold. Rocker-bottom sole propels the foot forward when walking. Protects feet, legs, and back during long hours of standing or walking. The footbed follows the foot's anatomical contours. Supports foot from heel to toe. The footbed also provides antimicrobial properties. The sock lining absorbs and evaporates perspiration and is non-allergenic.