4.65 oz., 100% polyester. UA Techâ„¢ fabric is quick-drying, ultra-soft & has a more natural feel. Moisture Transport System wicks sweat & dries really fast. Anti-odor technology prevents the growth of odor-causing microbes. Four-way stretch fabrication allows greater mobility in any direction. Improved Fit: plus 1.5" in body length, plus 2" across chest, plus 2" around bottom opening. Updated set-in sleeves. UA logo on top front chest and back.