What Our Gearhead(R) Experts Are Saying:"I grab this singlet on race days when every detail matters. The Dri-FIT ADV fabric keeps sweat under control and the ventilation zones help dump heat during hard efforts. It's incredibly lightweight and the bonded seams keep things smooth so there's no chafing over long miles."When race day arrives and every ounce counts, we reach for the Nike Dri-FIT ADV AeroSwift GFX Singlet. Designed for speed and built for high-output performance, this streamlined singlet keeps us focused on the finish line without distractions. Nike engineered the AeroSwift with advanced Dri-FIT ADV technology that wicks moisture while strategically placed ventilation zones increase airflow where runners need it most. The lightweight fabric feels smooth and fast against the skin, while bonded seams at the collar and armholes reduce chafing during long efforts. A slightly longer hem provides extra coverage compared to previous versions, and the sleek race-ready design moves naturally as we push the pace.