The Coolswitch is the ultimate running shirt. It's specially designed to pull moisture away from your body and disperse it across the fabric for a comfortable wear and a guaranteed faster drying time. Mesh is strategically placed under the arms and down the sides to increase breathability and to maximize ventilation. 4-Way stretch allows for a full range of motion and the anti-odor technology prevents the growth of odor causing microbes so your shirt stays fresh mile after mile. And for increased visibility during low-light runs, Under Armour adds reflective logos on the front and back. [+]