CLARKS Men&#39;s Wave.Rotate Lace Up,Grey,8.5 M US,Clarks,wave.rotate,8557103223085" /> 100% Leather Rubber sole Removable dual-density Ortholitefootbed with removable EVA heel support, radius heel, fulcrum point and higher toe spring reduce step shock while helping to propel you forward. Internal EVA heel wedge positions your feet for easier walking while allowing for the use of custom orthotics. Injected EVA outsole with carbon rubber pads at key strike points further improves the walking experience. Rocker profile heel kicker, concave heel and toe-off support at outsole help you maximize energy return and create a smooth, effortless forward motion with each step. Strobel construction sews the upper to the insole creating an incredibly flexible shoe.