Nuwawa Kid's Classic T-shirt NuWaWa Big Boy's Harry Potter Ravenclaw Logo Tee Shirt This Short Sleeve is 100% cotton. Sizes:XS,S,M,L,XL ,the kid's actual size according to the chart. It is a beloved personalized product, very comfortable and very stylish. High-quality fashioning design. Its fabric weight is 190g/sqm.