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 made with a finer, high quality face yarn that provides a smoother printing surface and helps reduce pilling. Classic fit 1x1 rib with spandex for enhanced stretch and recovery 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