5.3 oz./yd² (US) 8.8 oz./L yd (CA), 100% cotton, 20 singles Sport Grey is 90/10 cotton/polyester Graphite Heather & Safety Green are 50/50 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® Heavy Cotton family has been remastered for improved printability, quality and comfort you can see and feel. Classic fit Classic width, rib collar Taped neck and shoulders Left chest pocket Tear away label Responsible Supplier:  this product was made in a facility that is OEKO-TEX and FLA certified. Responsible Materials:  contains US grown BCI cotton .