8.5 oz./yd, 80/20 ring-spun cotton/polyester with 100% ring-spun cotton faceCharcoal Heather is 50/50 cotton/polyesterLight Steel is 78/22 cotton/polyesterDouble-needle stitched throughout1x1 ribbed collarTwill-taped back neck1x1 ribbed cuffs and waistbandTear away labelThis product meets the following Sustainable Style subcategories:Sustainable Manufacturing:This product was made in a facility that is run by at least 50% renewable energySocially Conscious Manufacturing:This product was made in a facility that utilizes the Higg Index and has implemented Level 2 practices or above, and was made by a mill that has partnered with or is accredited by the Fair Labor Association