Be cozy when you train in the Men's THERMOPOLIS half-zip training top by ASICS. It's made from a brushed mid-weight fabric that helps retain heat so you don't need to miss out on your outdoors exercise on cold days. The top has a half-zip collar that helps you regulate your body temperature as you push yourself. It's also made with raglan sleeves for easy mobility as you're pumping your shoulders and arms. The top is finished with thumbholes for added comfort keeping wrists warm while you're breaking a sweat.