The Nike Women's Pro Warm Long Sleeve Training Top is a stylish and functional synthetic base layer top. Made with a blend of polyester and spandex, it offers a snug and supportive fit. The Nike Pro Warm fabric provides excellent insulation and moisture-wicking properties, keeping you warm and dry during workouts. The long sleeves and mock neck design offer extra coverage and protection. Whether you are hitting the gym or going for a run, this top will keep you comfortable and stylish. With its trusted brand name and performance-driven features, it is no wonder that it is one of the most wished-for women's synthetic base layer tops on Amazon.