SUPER SOFT & WARM FABRIC: Made from a 95% polyester + elastane 5% supertouch fabric blend. The latest 4-way stretch material provides a breathable and comfortable fit.MAINTAINS GOOD THICKNESS HEAT: Perfect for cold weather, comfortable and stretchy with normal thickness, featuring a lightweight and warm fleece lining, perfect for providing extra warmth and insulation as a ski during winter activities.INCLUDES TOP AND BOTTOM: Our womens thermal trouser set includes a long-sleeved t-shirt and a pair of full-length pants, perfect for wearing as a set, or as a single wool top or a pair of basic leggings or tights.A wide range of colors for your beautiful closet: the classic black thermal underwear should be your must-have item for this white winter, meeting different trends with this piece. Of course, burgundy and navy are also good choices.Versatile layering: in terms of style and comfort, the lightweight and soft outer thermal underwear is anti-static, so its easy to slip another layer on top. It is the best choice for womens thermal underwear, hiking and skiing bottoms, and womens thermal running.