The NikeCourt Air Zoom Vapor X is supportive and responsive so you can run, jump and slide in total comfort. The innovative outsole keeps weight to a minimum while putting durability where it's needed the most, so you can keep getting after it, match after match. Dynamic Fit system creates a glove-like fit for support while you run and slide. A full-length foot frame on each side helps stabilize your foot during quick cuts. The foam midsole has a Zoom Air unit in the heel for responsive cushioning.