The Pace Air Tee is a slim-fit performance top built for high-intensity activities like running, fast hiking, and mountain biking. It's constructed from Rerun Jersey, an ultralight 115 g/m² fabric made from 100% recycled polyester, with a superfine knit that resists snagging and dries rapidly. Flat seams are strategically positioned to minimize chafing during sustained effort, keeping you comfortable across longer sessions in warm or humid conditions.