Speed on the court is so much more than just sprinting quickly in a straight line. With the Wilson Kaos Swift 1.5 Clay, you can move quickly in all directions, whether you're running from side to side or sprinting backward for a smash. Since lateral movement is crucial in tennis, this shoe is built on a Kaos chassis that provides you with flexibility and support for side sprints. We've enhanced ventilation to keep your feet comfortably cool at all times. Combined with the internal sock construction, this results in a shoe that is both comfortable and fast.