Nike Zonal Cooling Crew-neck design for a nonrestrictive fit Tailored fit for a clean, modern look Dropped back hem provides additional coverage Hit your workout with the performance-enhancing support of Nike's Zonal Cooling Training Top. Made for high-intensity exercise, Men's Nike Zonal Cooling Training Top features a lightweight, short-sleeve design that allows you to move without distraction. It's built to dissipate heat, helping to keep you comfortable while you work out. Nike Zonal Cooling technology incorporates areas of ventilation to enhance cooling. Shoulder seams are shifted forward for optimal mobility.