10 oz./yd (330gm) 70/30 ring-spun cotton/polyester 3-end fleece with 100% cotton face yarns on solid colors, 32 singles. Grey Heather is 52/48 ring-spun cotton/polyester. Generous fit. Split stitch double-needle sewing on all seams. Twill neck tape. 1x1 ribbing at cuff and waistband. Tear away label. This product meets the following Sustainable Style subcategories - Sustainable Manufacturing - This product meets OEKO-Tex Standard 100. Socially Conscious Manufacturing - This product is made in a facility that is WRAP certified.