Built for speed, the Nike Aero Swift Singlet is your go-to on race day. Lightweight and breathable, it’s made with Nike’s sweat-wicking technology to keep you dry when the pace picks up. Bonded seams reduce chafing, while the streamlined fit helps you stay focused from start to finish. 100% Polyester Nike Dri-FIT ADV Technology Moisture-Wicking Fabric Bonded Seams At Armhole & Collar Product Code: FN4231-121