The Fly IN‑R‑COOL Long Sleeve is a performance‑first running shirt that keeps you cooler and drier on hard efforts and long days. Built with Pearl Izumi’s IN‑R‑COOL cooling fabric and a featherlight, aero‑oriented cut, it actively transfers heat and moisture away from skin so you stay comfortable when intensity climbs. Slim, ergonomic tailoring and low‑bulk details make it ideal for speed work, hot‑weather training, and race day.
