4.3 oz./yd² (US), 7.2 oz./ Lyd (CA), 100% combed ring-spun cotton, 32 singles; Heather Grey is 90/10 cotton/polyester; Fabric laundered; Set-in 1x1 baby rib collar; Hemmed sleeves; Side seams; Tear away label; This product meets the following Sustainable Style subcategory:; Socially Conscious Manufacturing;