4.5 oz./yd², 100% ring-spun cotton, 30 singles; Fully pre-treated with printNOW technology; Ash is 99/1 cotton/polyester; Light Steel is 90/10 cotton/polyester; Charcoal Heather is 60/40 cotton/polyester; Set-in 1x1 baby rib collar; Tear away label; This product meets the following Sustainable Style subcategories:; Sustainable Manufacturing; Socially Conscious Manufacturing; Responsible Mindset; ;