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 collarTaped neck and shoulders for comfort and durabilitySide 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 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.