5.5 oz., 100% cotton jersey; Heather is 90/10 cotton/polyester; White is sewn with 100% cotton thread; Ribbed collar and cuffs; Shoulder-to-shoulder self-fabric back neck tape; Double needle bottom hem; Side seam construction; EasyTear™ label; CPSIA Compliant tracking label in side seam; Machine washable/ tumble dry low; Fit: Toddler Unisex