Under Armour Men's Coldblack Tee Time Stripe Polo 100% Other Fibers Imported Revolutionary coldblack technology reflects IR & heat rays, so even dark colors dont get as hot UPF 30+ protects your skin from the sun's harmful rays Yarn-dyed fabric is stretchy, light & breathable so it can handle the hottest days Material wicks sweat & dries really fast Anti-odor technology prevents the growth of odor-causing microbes