Designed for wear on clay courts and successfully blending comfort and performance, the Nike Zoom GP Challenge Pro Clay features a strong plastic midfoot plate that works in tandem with a wide base to offer stability for quick cuts and sudden changes in direction, ideal for facilitating your dynamic movements around the court. Synthetic material around the lateral side helps keep your foot contained when moving side to side, while extra rubber in the toe area - specifically the big-toe side - adds durability where it's needed most, with high-abrasion rubber along the outsole delivering enhanced durability and traction for long-lasting wear. Underfoot, a heel Air Zoom unit provides support while a forefoot Air Zoom unit adds a spring to your step, with the padded collar and tongue gently wrapping your ankle in plush comfort for a soft feel with every step.