Warm Fleece Lining: The functional underwear set for women has a fleece lining inside to keep your body at a comfortable temperature, reduce heat loss, and keep you warm in the fall or winter.Great Flexibility of Movement: The four-way stretch design of the women's ski underwear provides excellent comfort and allows greater freedom of movement in all directions, keeping you warm without restricting freedom of movement.Breathable and Sweat-Absorbent: The women's thermal underwear is made of breathable and moisture-absorbent polyester fabric, which instantly absorbs sweat during training, prevents unpleasant odors, and keeps you dry and comfortable.Like a Second Skin: The light and soft fabric fits the body better without looking bloated; the flat-lock seams reduce friction against the skin; the thermal underwear is anti-static and does not shed, giving you a comfortable wearing experience.Winter Basic Base Set: The women's thermal ski underwear set is not only suitable as home clothes or pajamas, but can also be worn as a base layer under other clothes, especially for outdoor activities in cold weather.