Kids Outfit Sets it is more correct to compare with the height:(UnitCM)90=12M/18MTop length=39 bust=56 sleeve=34 Pants length=51 waist=20 , fits for: 80-90cm height / 12-18 Month 95=2TTop length=41 bust=60 sleeve=37 Pants length=54 waist=21 , fits for: 85-95cm height / 2 Years old 100=3TTop length=43 bust=64 sleeve=39 Pants length=57 waist=22 , fits for: 90-100cm height / 3 Years old 110=4TTop length=45 bust=68 sleeve=40 Pants length=60 waist=23 , fits for: 100-110cm height / 4 Years Old 120=5TTop length=47 bust=70 sleeve=42 Pants length=63 waist=24 , fits for: 110-120cm height / 5 Years Old 130=6TTop length=49 bust=76 sleeve=45 Pants length=66 waist=25 , fits for: 120-130cm height / 6 Years OldNote: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=2.540cm3.Please check the figures carefully and order the right size, don't completely depend on the " age ace". It's just for reference. Cute Santa Children Clothing Set Cartoon Print Kids Christmas Costume Casual Cotton Kids Pajamas Suit 1-6 Year Baby Kid Clothes