1-2Y 3-4Y 5-6Y 9-10Y 6M 12M 18M 24M 25-27 28-30 31-33 33-34 34-36 35-36 36-37 37-38 38-39 39-40 40-41 41-42 42-43 43-44 44-45 45-46 46-47 46-48 S M L XL Taglia unica