The NikeCourt Zoom Vapor Flyknit Hard Court Men's Tennis Shoe brings a lightweight design to help keep you comfortable throughout drills, fast cuts and cool-downs. Breathability The nearly seamless, form-fitting Flyknit upper provides the perfect combination of ultralight support and ventilation to keep you moving. Aggressive Traction A herringbone outsole pattern with an XDR (extra durable rubber) compound on the heel and forefoot provide aggressive traction for the hard court. Responsive Cushioning The Nike Zoom Air heel unit delivers springy, responsive cushioning upon impact, adding a snappy feel to your cuts, dives and saves.