Gildan Youth School Uniform Pack of 5 Double Pique Polo Sport Shirts Poly-cotton Pack includes 5 DryBlend Youth Double Pique Sport Shirts - perfect for all day comfort at school. DryBlend technology deliver moisture wicking properties. Contoured welt collar with a clean-finished placket and two color matched buttons. Side seams with vents. Youth Sizing: XS = 4-5, S = 8, M = 10-12, L = 14-16, XL = 18-20. See product description for exact measurements.