Sleek, fast, and built for the grind, the AeroTopo Endurance Hat is engineered to handle your longest days in the sun. Featuring high-contrast topo designs and structured construction, this hat is made for those who go the extra miles — on pavement or peak. * Moisture-wicking performance fabric * Laser-cut ventilation for max airflow * Snap back to fit all size head * Ideal for road or trail running