3.6 oz. 30/1 Ultra Jersey 65% polyester/ 35% cotton blend, side-seamed, taped neck and shoulders with double-needle sleeve and bottom hem. Super soft comfortable and form fitting. Wash's and wears extremely well. This shirt can handle at least twice the amount of washings before shrinking or fading that a comparable 100% cotton T can. Very comparable to the American Apparel BB401 at about half the cost! Featuring a Tear-Away Tag!