There is 1-2% difference according to manual measurement.<br> Please note that slight color difference should be acceptable due to the light and screen.<br> Size Charts<br> Size 60: Romper Length 20.47 inch,Bust*2 9.44 inch,Sleeve Length 9.05 inch, For Age 0-3 Months<br> Size 70: Romper Length 21.65 inch,Bust*2 9.84 inch,Sleeve Length 9.84 inch, For Age 3-6 Months<br> Size 80: Romper Length 22.83 inch,Bust*2 10.23 inch,Sleeve Length 10.62 inch, For Age 6-9 Months<br> Size 90: Romper Length 24.01 inch,Bust*2 10.62 inch,Sleeve Length 11.41 inch, For Age 9-12 Months<br> Size 100: Romper Length 25.19 inch,Bust*2 11.02 inch,Sleeve Length 12.20 inch, For Age 12-18 Months<br>