The SweatyRocks Women's Open Back Workout Sweater is a top-rated activewear sweater on Amazon. Made from a blend of polyester and spandex, this sweater offers a comfortable and stretchy fit. The open back design adds a stylish twist to your workout attire. It features a relaxed fit and long sleeves, providing comfort and coverage. Whether you're hitting the gym, practicing yoga, or going for a run, this sweater is a fashionable and functional choice.