5.5 oz., 50% USA cotton, 50% polyester; Htr Sport Royal, Htr Sport Dark Navy, Htr Sport Scarlet Red: 65/35 poly/cotton; DryBlend� fabric wicks moisture away from the body; Made with 50% sustainably and fairly grown USA cotton; Double-needle stitching throughout; Seamless collar; Taped shoulder-to-shoulder; Tear away label; Gildan's manufacturing process utilizes 45% renewable energy; Gildan�s Community Investment Program supports education, the environment, humanitarian aid and active living in the communities we do business in