This 4-piece women's thermal underwear set is perfect for various winter activities. Whether you're going on a weekend getaway, to work, or running errands, it provides the warmth you need. The set is made of 92% microfiber and 8% spandex, with sizes available from S to XL. S size has a 32' chest, 22.5' length, 25' waist, and 28' inseam; M size has a 34' chest, 23' length, 27' waist, and 28' inseam; L size has a 36' chest, 23.5' length, 29' waist, and 28' inseam; XL size has a 38' chest, 24' length, 31' waist, and 28' inseam.