Size: 70,80,90,100,110

70=6M 9M(6months,9months)

80 =12M(12months)

90 =18M(18months)

100 =24M(24months )

1 inch = 2.54cm

Note: there may be 1-3 cm error, please understand.choose size, a priority for height, if your baby is relatively strong, please choose a large size;