2 to 3 years old, 4 to 5 years old, 5 to 6 years old, 7 to 8 years old, 8 to 9 years old (S), 9 to 10 years old(M), 11 to 12 years old(L), 13 to 14 years old(XL), XS, S, M, L, XL, 2XL, 3XL, 4XL