9.5 oz., 80% ring spun USA cotton, 20% polyester; Made with 80% sustainably and fairly grown USA cotton and sewn with USA cotton thread ; Double-needle 1x1 rib collar; Twill taped back neck; Double-needle neck, shoulder, armhole, cuffs and waistband; Rolled forward shoulder; Pack patch; Sideseamed; Twill label; Comfort Colors uses 50% less water than traditional pigment dye processes on pigment dye and color blast garments; Comfort Colors?, through Gildan?s Community Investment Program, supports education, the environment, humanitarian aid and active living in the communities we do business in