6 oz./yd², (US) 10 oz./L yd, (CA), 100% cotton, 18 singlesAsh is 99/1 cotton/polyesterHeather Grey is 90/10 cotton/polyesterCharcoal Heather & Safety Green are 50/50 cotton/polyesterRelaxed fitWide rib 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 in a facility that utilizes the Higg Index and has implemented Level 2 practices or above, was made by a mill who partnered with Fair Labor Association and was made in a facility that is WRAP certified.