L, M, S, XL - Intercooler. 6.2 oz 100% polyester micromesh polo featuring UltraCool (R) technology. Wicks away perspiration to increase your comfort under warmer conditions. Rear shoulder vents enhance airflow and add a stylish touch. Accented with contrast flatlock stitching, three-button placket, and open cuffs. UltraCool (R) - Denotes styles made of our performance moisture-wicking fabric that wicks away perspiration to increase your comfort under warmer conditions. Easy Care - Styles that are easy wash and wear with machine wash and tumble dry. Tagless - Features heat transfer label for greater comfort.