Keep yourself at the front of the pack with the fashion and function of our Running collection, the latest in running technology that's perfect for uncompromising athletes, no matter if you're a casual jogger or aspiring Olympian. Our Half-Zip Men's Running Top features COOLADAPT technology to keep you comfortable and well ventilated during your run, as well as dryCELL technology and 360-degree reflectivity to intelligently wick moisture away from your skin and promote visibility in low light conditions.