The soles of these leather slip-on shoes have patented springs that cushion foot impact and return up to 96% of spent energy to the foot, reducing foot fatigue and stress on joints and tendons from hours spent walking or standing. The three springs (one in the heel and two in the forefoot) disperse and deflect the force of each step and, as the springs decompress, they return propulsive energy to the wearer that would otherwise be lost to the ground. Unlike traditional footwear cushions made from foam or gel, the durable stainless-steel springs last the lifetime of the shoe, yet they are lightweight so they won't inhibit movement. The full grain leather upper is oil tanned for a smooth, soft finish, and the solid carbon-rubber outsole ensures confident footing. Leather will expand with wear to conform to the unique shape of your foot for a comfort fit. With a removable, molded EVA footbed. Specify Brown or Black. Women's whole and half sizes 5-11. If in-between sizes, order the next whole or half size up. (13 3/4 oz.)