The Under Armour Women's Rival Fleece Crew is a top-rated activewear sweater for women on Amazon. It is made with a blend of cotton and polyester, providing a soft and comfortable feel. The elastic hem ensures a snug fit, while the ribbed cuffs and crew neckline add a classic touch. This sweater is perfect for workouts or casual wear, offering both style and functionality. With its popularity among customers, it is a reliable choice for women's activewear.