4 5 oz /yd² 100% ring spun USA cotton 30 singles Heather Grey is 90/10 ring spun cotton/polyester Other Heathers are 50/50 ring spun cotton/polyester Reactive dyed for longer lasting color Pre washed to minimize shrinkage Contrast ribbed binding on neckline and sleeves Taped neck and shoulders Double needle stitching on neck and bottom hem Tear away label USMCA certified 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 brand is working towards an OEKO TEX Standard 100 certification /div div br /div div Socially Conscious Manufacturing This product was made in a facility that holds a SMETA audit certification /div