Asics Essentials Cap Keep your eyes on the prize even if you're out playing in the sun. Put on this essential cap for tennis matches, rugby training or if you're out running - in fact, any sport that gets you out in the sunshine. Watch the sun beat down on everything but you. Enriched with Motion Dry technology, this cap wicks sweat away from the skin for quick evaporation; keeping your head damp-free and comfortable on hot, longer distance days. Mesh panels increase airflow, helping to prevent uncomfortable heat buildup so that you stay cool and motivated. Its adjustable at the back to let you find your perfect fit.