Stay warm and comfortable with this two-piece women's thermal underwear set, featuring a seamless long sleeve thermal top and matching long pants. Made from a soft, stretchy blend of 58.9% Nylon34.9% Polyester6.2% Spandex, this thermal set delivers reliable thermal retention and great flexibility for daily wear, outdoor hiking or skiing in cold weather. The slim fit design lies smoothly under coats and jackets without creating bulky lines. Available in multiple solid colors, with sizes ranging from Small to X-Large. Machine wash cold with like colors and tumble dry lo Stay warm and comfortable with this two-piece women's thermal underwear set, featuring a seamless long sleeve top and matching long pants. The soft, stretchy circular knit blend contains 58.9% nylon, 34.9% polyester, and 6.2% spandex for flexibility and a smooth, fitted layer under coats and jackets. With midweight warmth, the set is suitable for fall and winter wear, outdoor activities, hiking, skiing, and everyday cold-weather layering. The solid light gray design is available in a regular fit and size X-Large. Machine wash cold with like colors and tumble dry low.