The ODODOS Women's Open Back Sweater is a fashionable and functional choice for women's activewear. Made from a blend of polyester and spandex, this sweater offers a comfortable and stretchy fit. It features an open back design that adds a stylish element and allows for breathability during workouts. The sweater has a relaxed fit and a longer length, making it perfect for layering over your favorite sports bra or tank top. It is available in various colors and has received high ratings from customers on Amazon.