100% combed ringspun cotton jersey, Heather is 90/10 combed ringspun cotton/polyester, CVC colors are 60/40 combed ringspun cotton/polyester, White is sewn with 100% cotton thread, Ribbed collar and cuffs, Shoulder-to-shoulder self-fabric back neck tape, Double-needle stitched bottom hem. Youth sizes: XS(2-4), S(6-8), M(10-12), L(14-16), XL(18-20).