4.5 oz. 100% combed ringspun cotton fine jersey Ash is 98/2 combed ringspun cotton/polyester Heather is 93/7 combed ringspun cotton/polyester CVC colors are 60/40 combed ringspun cotton/polyester Ash and White are sewn with 100% cotton thread Flatlock-stitched seams Double needle stitched ribbed binding on lap shoulder neck, shoulders, sleeves and leg opening Innovative three-snap closure Side seam construction CPSIA compliant tracking label in side seam EasyTear™ label