The Pace Air Tee is an ultralight performance top built for high-intensity activities like running, fast-paced hiking, and mountain biking in warm or humid conditions. Constructed from Rerun Jersey — a superfine, stretchy fabric made from 100% recycled polyester — it wicks moisture quickly and resists snagging during movement. The slim fit and flat seams are designed to move with the body without restriction or chafing, keeping comfort high across extended efforts.