4 6 8 10 12 14 Years Big Boys Jacket Autumn Winter Thicken Warm Teenager Kids Jackets Fashion Long Style Zipper Hooded Boys Coat

it is more correct to compare with the height:
(Unit：CM)
Size 120=4T：Length=64 Bust=84 Sleeve=42, fits for: 110-115cm height / 4 Years Old

Size 130=5T：Length=66 Bust=86 Sleeve=44, fits for: 115-125cm height / 5 Years Old

Size 140=6T-7T：Length=69 Bust=90 Sleeve=46, fits for: 125-135cm height / 6-7 Years Old

Size 150=8T-9T：Length=72 Bust=94 Sleeve=48, fits for: 135-145cm height / 8-9 Years Old

Size 160=10T-11T：Length=75 Bust=98 Sleeve=50, fits for: 145-155cm height / 10-11 Years Old

Size 170=12T-14T：Length=78 Bust=102 Sleeve=52, fits for: 155-160cm height / 12-14 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.