5.6-ounce, 50/50 cotton/poly, Oxford is 47/53 cotton/poly, 1x1 rib knit crew collar, Seamless body with set-in sleeves, Double-needle coverstitched on front neck, Shoulder-to-shoulder taping, Double-needle sleeves and hem, Ash (formerly Birch), Youth Sizes: XS(2-4), S(6-8), M(10-12), L(14-16), XL(18-20.