The men’s Craft Core Gain Midlayer is the perfect layering piece for your cold-weather workouts. This half-zip midlayer feels like your favorite pajamas if they were designed for working out. The slightly brushed fabric is soft against the skin, while also keeping you warm and comfortable during your run. With a stylish, sporty look and endless versatility, you can wear the Core Gain Midlayer on its own or as an extra layer during the winter months. The Craft Core Gain Midlayer is just the right mix of lightweight and warmth to become your new favorite top for cold-weather runs. Looking for other cold weather running apparel? Check out our guide on the best winter running apparel.