Joe's USA Youth Polo Shirts in 12 Colors. Youth Sizes: XS-XL Youth Polo Shirts in 11 Colors. Youth Sizes: XS-XL 5.5-ounce, 50/50 cotton/poly. Soil-release finish 1x1 rib knit collar and cuffs 1x1 rib knit collar and cuffs 1x1 rib knit collar and cuffs.3-button placket with dyed-to-match buttons Double-needle hem.Youth Sizes: XS(4), S(6-8), M(10-12), L(14-16), XL(18-20)