My son is 5'7'' 125lbs, is size small good for him
749096
I'm 5'9 1/2 and about 164lbs and a Medium fits well on me. Maybe this will provide you with some guidance.
749097
I'm 6'1" 175lbs and a medium works for me. I believe it should work for your son.
526004
The set is truly true to size so if he is on the smaller side such as not very tall and quite slender, then I think it should be fine.
587544
It will be ok for him. My daughter is 5'5", and it isn't too big.Look up some videos on YouTube.
1186710
My son ordered a medium, he is 5"9 150. It fits him comfortably, this would fit him loosely if that is what he likes.
411714
My son is 7 years old and is tall but thin. We ordered the small and it fits great with layers underneath. He may even be able to wear next season.
137602
They are an adult size, my son is 12 he is 100 lbs and is 61 inches tall and he fit in the size Small prefect.
893277
It may be a bit short in the arms if he is tall... At size 6 my tall 5 year old wore it one last Halloween but now that he's 6 years old and size 7 we retired until our baby grows into it.
1384921
I would say the large it sounds like he is tall my son is still under 40" and under 40 lbs and the small fits well.
1748835
my son, who is 19, is about the same build as you. He ordered the small and is happy with that size. The legs are short, but that works well when he is out hunting and wears wool socks & his Danner 12" boots. The size medium would be too bunchy in the seat/groin area.
617261
Most likely. My son is also five years old, and he is in the 105 percentile for growth. He is on the large size of five, and it still fits him.
438741
I bought this vest in a size small as a Christmas present for my 5 year old son who weighs about 40 lbs. If you want him to get a lot if wear out if it, I would suggest going up one size.
1332948
My son is 13 and he wore the large he is 5ft and weighs and 90lbs. He normally wears a kids xl or adult small, so these do run a little big. I would say the small is for a child that is around 50lbs a size 8/10
642297
My son is 10 and wears the medium and he is of average size for his age. Unless your 7 year old is tall for his age I would suggest a small.
828824
I bought this for my son for his 4th birthday in August. He's a bit on the small side, too, but it's a great size for him. Hope that helps!
601504
Given that I have only bought one size, and I am a fully grown adult, it's difficult for me to recommend which one you should pick for your son. But, I did scan through the reviews to see which ones mention buying smaller sizes for their children. I came across a few that would at least come close to your son's statistics. The first one I found was bought for a 9 year old who was "Very tall" for her age, and they got her a medium. The reviewer said that if you buy a size perhaps slightly bigger than you were hoping for, the outfit comes with several straps that wrap around the waist and legs that can tighten it. (which I can confirm is true.) The only part that I've ever found to be loose is the upper chest region. I can't even seem to get that region to stay tucked in when I move around too much in the outfit. Also, another reviewer bought this for her 13 year old son who was 5'7 and 120 pounds and chose large. She said it was "a tad loose, but not too long." This is probably the example you were looking for, so listen carefully: Given the fact that you son is the same age as hers, and is both shorter and weighs less than her son, Medium might be a wiser choice - but remember I can't confirm that, I've never bought or tried any other side except for XL. At any rate, I think whether you pick medium or large everything will be fine. The medium might fit perfectly, and the large, if you decided to get that one, would at least be really comfortable, nonrestrictive to motor functions, and more importantly; he'd be able to continue using it as he ages and grows. So either decision you make I think you'll find good things about either of them. Hope I was of help.
2228271
My guy is 6. Size small was a bit long but fit well enough for him to wear and looked great. He is very happy with it.
317740
my son is 6 and i bought him a size small 4-6 and he weighs 46 lbs and that fit him so if your son is any were like that i would get him the size small4-6 i hope i could be of some assistance