ADVANCED COOL that takes TRAINING TO THE NEXT LEVEL.Nike AeroAdapt Men's Training Top boasts goal-oriented ventilation that is tailored to your performance. Moisture-sensing slits increase airflow when needed while the sleek, lightweight fabric dries quickly to give you a confidence that extends beyond the workout.Advanced Ventilation CapabilityNike AeroAdapt technology uses targeted panels with sweat-activated slits that release your body heat at maximum exertion and then "shut down" when you cool down, so you maintain an optimal body temperature.Sweat Removal ComfortDri-FIT technology removes sweat from your skin for faster evaporation to keep you dry and comfortable. The knitted fabric is lightweight and ventilated.The joined stretch tape on the shoulder seams allows you to move freely.The extended hem at the back provides extra protection.More information Tight fit Fabric: Body: 91% polyester / 9% elastane. Panel: 81% polyester / 19% nylon. Machine wash Imported92% polyester8% elas