Ladies Extreme Ultralight Warmest Top makes your favorite cold weather activities more pleasant. Whether you are hiking; biking; hunting; snowboard; ski; camping or other outdoor sports; traveling and even sleeping Outland's thermal top keeps you comfortable. The Thin Lightweight Thermal Clothing maintains your body heat at a cool temperature by wicking moisture away from your skin; drying quickly and insulating from the cold.The Basic Undershirt has an interior microfiber fleece that is soft and cozy; feels great against your skin and under a layer of clothing. Shirt can be used as base layer or worn alone.