Dansko Men's Professional Box BlackMen's Professional Box Black The Dansko Professional is the clog that launched a Comfort Revolution. Inside its iconic silhouette is a roomy reinforced toe box, an anatomically contoured PU midsole, an inner frame for stability and support, a padded instep collar, and a protective heel counter that allows the heel to move up and down freely while providing lateral stability. The anti fatigue rocker bottom assists with forward motion while walking to