Asics Eikoku 3 Long Sleeve Running Top Moisture Management - Helps to wick sweat away from the skin, ensuring you remain dry and comfortable while running. Lightweight - A lightweight material ensures there are no distractions while you run and gives you the freedom to wear other layers either under or over the top without you worrying about weight. Reflectivity - To keep you safe when running in low light conditions, which is particularly useful in the dark autumnal/winter months. V-Neck - A V-Neck design gives you additional comfort for motion-maximum running.