5.3 oz./yd² (US) 8.8 oz./L yd (CA), 100% cotton, 20 singlesBlackberry, Dark Heather, Graphite Heather, Heather Colors, Lilac, Midnight, Neon Colors, Safety Colors, Sunset, & Tweed are 50/50 cotton/polyesterAntique colors & Sport Grey are 90/10 cotton/polyesterAsh Grey is 99/1 cotton/polyesterSafety Green is compliant with ANSI / ISEA 107 high-visibility standardsInnovation you can feel. Made with 100% U.S. cotton and the latest breakthrough in soft cotton technology, the Gildan® Heavy Cotton family has been remastered for improved printability, quality and comfort you can see and feel.Classic fitRib collarTaped neck and shoulders for comfort and durabilityTear away labelProud member of the U.S. Cotton Trust ProtocolMade with OEKO-TEX certified low-impact dyesThis product meets the following Sustainable Style subcategories:Sustainable Manufacturing: This product meets the OEKO-TEX Standard 100.Socially Conscious Manufacturing: This product was made by a mill who partnered with Fair Labor Association and was made in a facility that is WRAP certified.