The Nike Women's Pro Warm Long Sleeve Top is a top-rated base layer option for women on Amazon. Made from a blend of polyester and spandex, this top offers excellent warmth and moisture-wicking properties. It features a slim fit and a mock neck design for added coverage. The flat seams reduce irritation and chafing, making it comfortable for all-day wear. Whether you're hitting the gym or going for a run, this Nike base layer top will keep you warm and stylish.