Under Armour Tiger Tech 2.0 Short Sleeve T-Shirt made from high quality polyester fabric. Fabric is quick-drying, ultra-soft and has a more natural feel. Cling-free, quick-drying and insanely lightweight running shirt. Pulls sweat away from the body and dries quickly so you can go the distance. Lightweight materials help stop chafing for a more comfortable running experience. Strategically placed mesh and ventilation provide extra breathability. Anti-odor technology prevents the growth of odor-causing microbes. Size: Small.