it is more correct to compare with the height:
(Unit：CM)
90=12M-18M：length=42 bust=58 sleeve=32, fits for: 75-85cm height / 12-18 Months
100=24M：length=45 bust=62 sleeve=33, fits for: 85-95cm height / 18-24 Months
110=3T：length=47 bust=66 sleeve=34, fits for: 95-105cm height / 3 Years Old
120=4T：length=49 bust=70 sleeve=35, fits for: 105-115cm height / 4 Years Old
130=5T：length=52 bust=74 sleeve=37, fits for: 115-125cm height / 5 Years Old
140=6T-7T：length=55 bust=80 sleeve=39, fits for: 125-135cm height / 6-7 Years Old
Note:
1.There is 2-3% difference according to manual measurement.(1 inch = 2.54 cm)
2.All measurement in cm, please note 1cm=0.3937ch, 1 inch=2.540cm
3.Please check the figures carefully and order the right size, don't completely depend on the " age advice". It's just for reference.
Size Chart
it is more correct to compare with the height:
(Unit：CM)
90=12M-18M：length=43 bust=60 sleeve=28, fits for: 70-80cm height / 12-18 Months
100=24M：length=46 bust=62 sleeve=30, fits for: 80-90cm height / 18-24 Months
110=3T：length=49 bust=64 sleeve=33, fits for: 90-100cm height / 3 Years Old
120=4T：length=53 bust=68 sleeve=35, fits for: 100-110cm height / 4 Years Old
130=5T：length=56 bust=70 sleeve=38, fits for: 110-120cm height / 5 Years Old
140=6T-7T：length=59 bust=74 sleeve=41, fits for: 120-130cm height / 6-7 Years Old
Note:
1.There is 2-3% difference according to manual measurement.(1 inch = 2.54 cm)
2.All measurement in cm, please note 1cm=0.3937ch, 1 inch=2.540cm
3.Please check the figures carefully and order the right size, don't completely depend on the " age advice". It's just for reference.
Details
Age:
0-3 Months,3-6 Months,6-9 Months,9-12 Months,12-18 Months,18-24 Months
4.0 out of 5 based on 4,274 reviews 
