6 oz /yd² (US) 10 oz /L yd (CA) 100% cotton 18 singles Ash Grey is 99/1  cotton/polyester Safety colors are 50/50 cotton/polyester Sport Grey is 90/10 cotton/polyester Safety Green is compliant with ANSI / ISEA 107 high visibility standards Innovation you can feel Made with 100% U S cotton and the latest breakthrough in soft cotton technology the Gildan® Ultra Cotton family has been remastered for improved printability quality and comfort you can see and feel Classic fit Rib collar Taped neck and shoulders for comfort and durability Tear away label CPSIA Tracking Label Compliant Proud member of the U S Cotton Trust Protocol Made with OEKO TEX certified low impact dyes div div span style text decoration underline strong This product meets the following Sustainable Style subcategories /strong /span /div div br /div div Sustainable Manufacturing This product meets the OEKO TEX Standard 100 /div div br /div div 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 /div /div