Under Armour SO-CHILL Mens Navy Polo ShirtWe flattened out the fibers and added some science to create a game changing fabric that quickly pulls heat away from the skin keeping you calm, cool, and crushing at max capacity. Features: Iso Chill fabric helps disperse body heat, making it feel cool to the touch Built in UPF 50+ sun protection 4 way stretch material moves better in every direction Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing