UA Microthread technology in the fabric dries faster, won‘t cling to you, won‘t chafe & stretches without absorbing sweat. UPF 30+ protects your skin from the sun’s harmful rays. 4-way stretch construction moves better in every direction. Material wicks sweat & dries really fast . Anti-odor technology prevents the growth of odor-causing microbes. 2-button placket for clean, modern look.