Mother nature doesn't take any days off so why should you? Use the Under Armour Base 1.0 Legging in any sport, as a layer or by itself, for superior warmth without the extra weight. Constructed with Under Armour's Base™ 1.0 fabric, this base layer circulates heat through tiny channels to help regulate your core temperature during high activity levels. Moisture Transport System pushes sweat away from your body to the surface of your gear so it dries faster, while Anti-Odor technology keeps your gear fresher by preventing the growth of odor-causing microbes. So whether you're on a run or on the mountain, the Under Armour Base 1.0 Legging is your first line of defense against the cold.