Tultex Fine Jersey Tank Top ul)4.5 oz./yd2, 100% ring-spun USA cotton. Heather Grey is 90/10 ring-spun cotton/polyester. Reactive-dyed for longer lasting color. Pre-washed to minimize shrinkage. Ribbed binding on neckline and armholes. Double-needle neck and bottom hem. Tear away label. USMCA certified. This product meets the following Sustainable Style subcategories:Sustainable Manufacturing: This brand is working towards an OEKO-TEX Standard 100 certificationSocially Conscious Manufacturing: This product was made in a facility that holds a SMETA audit certification