8 oz /yd² (US) 13.3 oz /L yd (CA) 50/50 cotton/polyester 20 singles Heather Dark Green Heather Dark Maroon Heather Dark Navy Heather Deep Royal and Heather Scarlet Red are 60/40 polyester/cotton Safety Green is compliant with ANSI / ISEA 107 high visibility standards The Heavy Blend collection is now made with finer yarns and new MVS Air spinning technology that improves the fabric by reducing pilling enhancing durability and creating a smoother printing surface Classic fit 1x1 rib with spandex for enhanced stretch and recovery Tear away label 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