I bought these for my sons who are 7 years old and the 8.1 jackets ripped after just a week of wearing. (You can see the tear in the photo. I tried to sew it up. Along with another small tear.) The second jacket still looks pretty good, but I noticed that it started tearing at the sleeve as well. (The second jacket was worn for about 3 months) For my 8 year old I bought a size 9-10. It fits perfectly, but I wouldn't go one size smaller. He is 52 inches (4 feet 4 inches) tall and 67 pounds.
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