Size Recommended Age Measurement (Inch) Romper Length Bust *2 66 0-3 Months 20.47 9.45 73 3-6 Months 22.05 9.84 80 6-12 Months 22.83 10.24 90 12-18 Months 24.41 10.63 There is 2-3% difference according to manual measurement. please check the measurement chart carefully before you buy the item. 1 inch = 2.54 cm Please note that slight color difference should be acceptable due to the light and screen.