Rocker footwear

A shoe comprising:

• an upper and a comfort sole attached to an outsole;
• the comfort sole having a varying radius of curvature at two or more points of a line extending from a heel area of the comfort sole to a toe area of the comfort sole and interfacing with the outsole, the comfort sole comprising;
• a centrally located center of mass zone, wherein the lowest point of the comfort sole and the outsole corresponds to a center of mass of the shoe, such that, when placed on a horizontal reference plane, the center of mass zone defines a transition of the roll of the foot having a highest sole radius of the comfort sole and the outsole, wherein the center of mass zone is positioned behind a metatarsal region of the comfort sole corresponding to a metatarsal region of a foot, and wherein the radius of curvature of the center of mass zone is between 350 mm and 3000 mm;
• a transition zone positioned adjacent to the center of mass zone toward the heel area of the comfort sole, the transition zone having a smaller sole radius than the center of mass zone;
• a first unrolling zone positioned forward of the center of mass zone in the metatarsal region of the comfort sole, the first unrolling zone having a sole radius that is smaller than the sole radius of the center of mass zone;
• a second unrolling zone positioned forward of the first unrolling zone having a sole radius that is greater than the sole radius of the first unrolling zone;
• and
• an impact zone at the heel having a sole radius smaller than the radius of the transition zone;
• wherein the transition zone and the impact zone each have a sole radius less than the sole radius of the center of mass zone.