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 number of washings before shrinking or fading that a comparable cotton T can. Very comparable to the American Apparel BB401 at about half the cost! Featuring a Tear-Away Tag!