Dansko's classic closed back clog offers superior support and protection. This clog also offers a polyurethane outsole for shock absorbency, and a PVC inner frame which provides optimal stability and reduces pronation of the foot. The rocker-bottom sole propels the foot forward into the walking motion and offers anti-skid tread to prevent slipping. It also features a wide, reinforced toe box that enables toes to spread naturally while walking, and allows for proper circulation and reduces general foot fatigue. The soft insole features a nonallergenic socklining and anitmicrobial foam cushion, and the shoe also has a padded instep for extra comfort.