Threadborne Siro fabric gives greater stretch & recovery, ultra-soft feel & more breathable performance|Material wicks sweat & dries really fast|Anti-odor technology prevents the growth of odor-causing microbes|Heathered twist effect on hood & body with solid side panels|Flatlock seams eliminate chafing|Fixed 3-piece hood with scuba collar for enhanced coverage|Hidden bottom hem cinch|Rolled forward side seams & back yoke detail