Game. Set. Match. Come out on the winning side in the all-new GP Challenge Pro. Designed for baseline back-and-forth bolts and dashes to the net, it has the needed speed and stability to help your game go the distance. Cut Quickly - A strong plastic midfoot plate combines with a wide base to offer stability for quick cuts and sudden changes in direction. Synthetic material around the lateral side helps keep your foot contained when moving side to side. Move Freely - Extra rubber in the toe area, specifically the big-toe side, adds durability where it's needed. High-abrasion rubber along the outsole offers durability and traction. Zoom, Zoom - A heel Air Zoom unit provides support to your step. Product Details - Designed for wear on hard court surfaces. Padded collar and tongue.