4.5 oz., 100% combed ringspun cotton fine jersey,CVC colors are 60/40 combed ringspun cotton/polyester,Heather is 93/7 combed ringspun cotton/polyester,Contrast ribbed collar and sleeve openings,Self-fabric back neck tape,Contrast topstitched self-fabric shoulder stripes,Double needle bottom hem,Side seam construction,EasyTear� label