Insanely soft, breathable fabric & articulated mesh fly panel & gusset No side or back seams for ultimate comfort 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 Performance waistband with metallic wordmark UA took their sweat-wicking, keeps-you-cool technology and turned it into the best underwear in the game. It feels cool, stays put, and provides a zero-distraction fit that's snug, but not tight.