4.5 oz., 100% combed ringspun cotton; Heather Grey: 90% cotton, 10% polyester; 100% cotton thread on color White; Shoulder-to-shoulder tape and 7/8" seamed collar; 1" double-needle sleeve and bottom hem; Tubular body; Made in USA of US and imported materials; Tear away label; American Apparel's manufacturing process utilizes 45% renewable energy; American Apparel?, through Gildan?s Community Investment Program, supports education, the environment, humanitarian aid and active living in the communities we do business in