Under Armour Men's CoolSwitch Upright Polo 95% Polyester/5% Elastane Imported UA CoolSwitch uses an exclusive coating on the inside that pulls heat away from your skin, so you actually feel cooler UPF 30+ protects your skin from the sun's harmful rays Material wicks sweat & dries really fast Anti-odor technology prevents the growth of odor-causing microbes 2-button placket for clean, modern look