0-3 M 3-6 M 6-9 M 9-12 M 1-2 Y 2-3 Y 3-4 Y 4-5 Y
Chest Width (cm) 23 25 27 28 29 31 33 35
Chest Width (inch) 9 10 10.5 11 11.5 12 13 14
Back Length (cm) 28 32 33 36 38 41 43 45
Back Length (inch) 11 12.5 13 14 15 16 17 18

 
Tolerance +/- 2cm