Real Madrid Soccer Jersey Kylian Mbappe #9 Special Edition Kit (Jersey Shirt and Shorts set) Extra Small - US 7, EU 22 Fits the average 5-6 year old boy Small - US 8 , EU 24 Fits the average 7-8 year old Medium - US 10, EU 26 Fits the average 9-10 year old Large - US 12, EU 28 Fits the average 10-11 year old Measurements XS - Chest 15.5 inch, Length - 22 inch S - Chest 16.5 inch, Length - 23 inch M - Chest 17.5 inch, Length - 24 inch L - Chest 18.5 inch, Length - 25 inch