(Recommend Choose One Size Up)

it is more correct to compare with the height:
(Unit：CM)
S/80=12M：Top length=39 sleeve=30 bust=63 pants length=50 waist=40 hips=66, fits for: 75-80cm height / 12-18 Months

M/90=18M/24M：Top length=41 sleeve=32 bust=65 pants length=53 waist=41 hips=68, fits for: 80-90cm height / 18-24 Months

L/100=3T：Top length=43 sleeve=34 bust=67 waist=42 pants length=55 hips=70, fits for: 90-100cm height / 3 Years Old

XL/110=4T：Top length=44 sleeve=36 bust=70 pants length=58 waist=44 hips=72, fits for: 100-105cm height / 4 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.

Short Sleeve Shorts Style

it is more correct to compare with the height:
(Unit：CM)
S/80=12M：Top length=38 sleeve=11 bust=63 waist=33 hips=66, fits for: 75-80cm height / 12-18 Months

M/90=18M/24M：Top length=40 sleeve=12 bust=65 waist=35 hips=69, fits for: 80-90cm height / 18-24 Months

L/100=3T：Top length=42 sleeve=12 bust=68 waist=36 hips=72, fits for: 90-100cm height / 3 Years Old

XL/110=4T：Top length=44 sleeve=13 bust=70 waist=38 hips=74, fits for: 100-105cm height / 4 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.