Whether chasing your next PR or marathon goal, you can go the distance with the easy-breezy adidas Women's adizero Running Singlet. This ultra-lightweight top has a barely-there feel with all-over perforated fabric for optimal breathability and air circulation. Forward-shifted side seams and taped-over abrasion points reduce chafing and friction for a distraction-free performance. A racerback design allows for unhindered movement, while reflective elements help you remain visible in low-light conditions.