The Under Armour Women's Rival Fleece Crew is a top-rated activewear sweater for women. It is made from a blend of cotton and polyester, providing a soft and warm feel. The loose-fit design allows for easy movement during workouts or outdoor activities. This sweater features a classic crew neck, ribbed cuffs and hem, and a brushed interior for added comfort. With its high-quality construction and stylish design, it's no surprise that this sweater is a best-seller.