SIZING INFO for RJC | Boys | 2pc Set | (in inches) | this sizing info is intended for reference only, there could be slight variations | please contact us if you need sizing assistance. Mahalo! |SHIRT CHEST| - (6 Months) 21.25 (12 Months) 22.25 (18 Months) 24.25 (24 Months) 25 (1T) 25.25 (2T) 26.25 (3T) 27.5 (4T) 28.75 (5T) 28.75 (6T) 31.25 (7T) 31.5 |SHIRT LENGTH| - (6 Months) 12 (12 Months) 12.375 (18 Months) 13 (24 Months) 13.375 (1T) 13.375 (2T) 13.75 (3T) 15 (4T) 16 (5T) 16.5 (6T) 17.5 (7T) 18.5