When you were a kid, did they tell you that you lose most of your body heat through your head? Whether that’s fact or fiction, it’s better to be safe than sorry—and far better to be comfortable than not. That’s why Smartwool's Active Ultralite Skullcap, which is made with a blend of Merino wool and TENCEL™ Lyocell fibers, this performance fabric is a great choice for your next cold-weather activity, whether it’s snowshoeing to a mountain hut or ice-skating in the downtown rink.