The FITTIN Racerback Sports Bras are highly rated low-impact sports bras on Amazon. These bras are made from a blend of nylon and spandex, providing a comfortable and stretchy fit. The racerback design allows for a full range of motion, while the wide straps offer additional support. The bras feature a moisture-wicking fabric that keeps you dry and comfortable during your workout. With over 10,000 positive reviews, these sports bras are a popular choice among women looking for a reliable and affordable option for their low-impact activities.