Icebreaker uses merino wool in its Men's BodyFit 150-Ultralite Anatomica V-Neck Shirt for breathable comfort while you work out. Merino wool regulates your body temperature so you're at a comfortable medium whether you run outdoors in the middle of summer or wear it as a baselayer when winter trail running. A touch of Lycra lends a sleek look and pulls the shirt close to your body without restricting your freedom of movement. Natural anti-odor properties reduce stink, so the shirt stays smelling fresh day after day. Set-in sleeves improve your range of motion, and a V-neck style looks just as good at the pub as it does at the gym.