There is 2-3% difference according to manual measurement. Please note that slight color difference should be acceptable due to the light and screen. SIZE Chart 0-3months Top Length 36cm Bust 48cm Pants Length 34cm Waist 40cm 3-6months Top Length 38cm Bust 50cm Pants Length 37cm Waist 41cm 6-12months Top Length 40cm Bust 52cm Pants Length 40cm Waist 42cm 12-18months Top Length 42cm Bust 54cm Pants Length 43cm Waist 43cm