4.5 oz., 60% combed ringspun cotton, 40% polyester; Natural Heather is 100% combed ringspun cotton; Printed star vintage fine jersey;Topstitched ribbed collar; Self-fabric back neck tape; Double-needle sleeves and bottom hem; Side seam construction; EasyTear™ label; 2% of all Code Five™ sales are donated to children of Fallen Soldiers Relief Fund, Inc. and Fisher House™;