5.3 oz./yd² (US) 8.8 oz./L yd (CA), 100% cotton, 20 singlesSport Grey is 90/10 cotton/polyesterInnovation 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 collar Taped neck and shoulders for comfort and durabilityRib cuffsSide seamsTear away labelCPSIA Tracking Label CompliantProud 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.