With its breathable design and body-hugging fit, the Nike Pro HyperCool Men's Short-Sleeve Training Top helps keep you cool and dry during high-intensity workouts. Stay Dry Dri-FIT Technology helps you stay dry and comfortable by pulling sweat away from your skin to the fabric's surface, where it quickly evaporates. Stay Cool Mesh panels on the back and sides keep the air flowing right where you need it, helping you stay cool when your workout heats up. Keep Moving A slim fit makes the top as versatile as your workout: Wear it on its own or as a lightweight base layer under your jacket or hoodie.