Stretchy and smooth against the skin, our fast-drying and technical base layer tops for men are a given in an efficient layering system. Whether you choose Merino wool, bamboo or a functional blend, our base layers have a snug fit to maximize heat retention and moisture transportation. Some tops feature a built-in balaclava that fits perfectly under a helmet or hat for extra warmth when you’re chasing powder or just out for a quiet winter walk.