Whether we're speed training to improve our splits or hitting the rowing machine to get the whole body moving, the Ten Thousand Lightweight Long-Sleeve Top helps keep us cool and comfortable. The featherweight fabric has micro-perforations to increase breathability and airflow, quickly cooling us down as we work up a sweat. The quick-drying material is cut to hang loosely without clinging to our body, allowing us to move freely during our entire workout.