COOL AND QUICK COOL AND QUICK The NikeCourt Zonal Cooling Advantage Men's Tennis Polo combines strategically placed areas of ventilation with stretchy, lightweight fabric to keep you fast, focused and fierce on the court. Enhanced Cooling Zonal Cooling Technology seamlessly incorporates areas of greater ventilation and breathability where you sweat most in soft, lightweight fabric. Move Freely Underarm gussets allow for a more comfortable feel so you can swing fully and fluidly without distraction. Light and Flexible Stretchy and ultralight fabric lets you move freely no matter how intense your game gets.