It seems that most comments have been that the suit runs small. From the sizing chart provided my son would be a size 8. So do I buy a 10????
173190
I have bought 4 suits (grandsons) and they were all correct sizes, however the white shirts that come with them are small. The white shirts size 6 (I bought 2) were fine, but the white shirts size 4 (I bought 2 of these also) were small. One of them was tight around the neck and so it was very hard to button. Grandson kept unbuttoning it because it was to tight. The shirts were also a little short at the bottom so not much to tuck into the pants. I hope that helps.
173191
I ordered my son the exact size he was....a 2T. The waist is thin but had elastic. If he's husky I'd go a size bigger. The measurement chart helped alot
173192
I would follow the measurements on the sizing chart. My son is normally a 3T but according to the sizing chart his measurements indicated we needed a 4T. I'm glad I measured because the 4T fit perfect.
2168106
Best way would be to measure him and compare to sizing chart. Our son's fit was true to size.
473551
I would go with the 6 because they seemed to run a little long in the torso to me. I had to send my daughters back not because it was poor quality or anything, she is just 4'10 and 100 lbs short legs long torso. I got her the 12-14. The size chart is pretty accurate though if your son is not all legs or all torso. Hope this is helpful? It was a nice suit, great quality for the price!
206852
The size runs small, I got my 7 year old the 6/8 size and it was too small. He is average height. I would probably get him the 8/10, it might be a little roomier, but he could wear clothes underneath it if he needed to.
1517086
Hi Danielle, my son is a pretty big 4 yo. 4T i too small. He wears mainly size 4 in little boy clothing now. Based on the other review (a 6 yo who wore a medium 8-10), i ordered the size small. I hope it works out! I'll post a review once it comes in.
4861
Hi I purchased a medium for my daughter she is 11 but very small so she where's about 8-9 pants and 10 shirt. The jacket is a little large but I wanted it that way as the sleeves are banded so you can pull them in. As I want her to get a bit of wear out of it. I would say the jacket would be more a 10 fitting. If your child is an 8 are they big or small? Do you want growing room? I love the jacket it was just what I wanted, I purchased the Large for my son and he wears a 12 pant and 12-14 shirt the jacket also has just enough growing room. I hope I have helped you with your sizing&#128522;
15353
Michael...I'd err on the larger size. You obviously want this form fitting, but too tight is no good. I'm 6'1" and 195 (ok...200, but it's early) and I bought the XL, which I did based on other's reviews. The usual challenge with up-sizing is pant and sleeve length, which you don't need to worry about with this model. I've only worn the suit a couple of times since I bought it in September of last year, but I've been pleased with it.
275366
The sizes tend to run larger than normal. So if he wears a medium a small could fit. Large would be way to big. Keep in mind its to jump around in and you want it loose. Its an awesome product for the money.
1384922
My son is much smaller, he's 4 and very short and skinny (40 inches tall, 30.5 pounds). I bought him this costume in a size S and it fits ok, so I guess you should buy it in a size L and fold it in the arms and hold it with the belt if its a little long... The costume comes with boots that are sown to the actual leg of the suit so it can be risky to buy a size M, it may be too short for him to wear... I really don't know how much bigger and longer each size is... I hope I've been of help!
883485
It runs really small. My daughter is 5'4", 160 and it wasn't even close. We ended up buying the sea wetsuit in xl. Hope this helps.
1440288
I got an automated "can you answer this" email from amazon.I think the top number in the size chart in amazon is the "Jacket Size". Similar to when you buy a suit off the rack. From there it lists chest, waist etc...I recommend going to their website for sizing info (that's what i did). I bought an extra-large and my typical suit size would be a 42-44. It fits closely with the liner in and is short. But that is the fit of a motorcycle jacket. So if you plan to ride without the liner go a bit smaller, if you will ride mostly with the liner go a bit bigger.I like the jacket. Good luck. I got an automated "can you answer this" email from amazon.I think the top number in the size chart in amazon is the "Jacket Size". Similar to when you buy a suit off the rack. From there it lists chest, waist etc...I recommend going to their website for sizing info (that's what i did). I bought an extra-large and my typical suit size would be a 42-44. It fits closely with the liner in and is short. But that is the fit of a motorcycle jacket. So if you plan to ride without the liner go a bit smaller, if you will ride mostly with the liner go a bit... » Read More I got an automated "can you answer this" email from amazon.I think the top number in the size chart in amazon is the "Jacket Size". Similar to when you buy a suit off the rack. From there it lists chest, waist etc...I recommend going to their website for sizing info (that's what i did). I bought an extra-large and my typical suit size would be a 42-44. It fits closely with the liner in and is short. But that is the fit of a motorcycle jacket. So if you plan to ride without the liner go a bit smaller, if you will ride mostly with the liner go a bit bigger.I like the jacket. Good luck. « Show Less
95416
I would guess a size 3 would work well but buying a 3 and/or 4 and trying it is the best way to find out, and return the one you don't take of keep them both if the 3 fits and you have the 4 for when he grows into it. Otherwise return both, but the other answers are correct to look at the O'Neill site and make sure the height is right. If it is too loose it will let cold water in and circulate, if it is too tight it will be very painful and useless. It is a great wetsuit for the toddlers, best I ever saw. BD
210070
I think I found a size chart on another listing from a different seller, since there wasn't one on this one (but the price was better); I think it the size chart may have even have been in one of the other customer reviews, but I don't remember exactly! If I were you, I'd look around at the other listings for this product, because I know that at least one of them has the size chart that helped me! Hope this helps!
1658245
I bought the size our Grandson would use at his class. The Grandson was 8 at the time I bought his and since you son is 7 I would buy a size 3. He will be able to wear it for several years before you will have to get another size. Then when you have to buy a bigger size you can usually sell it to some one in the class.
1303633
Please help me with the size issue? my 8 yr old is 120 lbs at about 52 inches with a big belly. He loves the water, he's autistic and intellectually challenged and incontinent. We spend a lot of time in indoor pool all winter, sometimes the water is cold for him after being in the pool for a couple hours. I looking for something warm and comfortable. Than you, Aiden's dad
420847
I have found that my size for everything else is the same here. I would say medium if you were 5"8". Could be a little long.It's a little size generous, so maybe try a small. Good thing abut Amazon is you can always send it back and exchange. My son loves this suit.
592903
They ran VERY small. My son is 7 yrs old and wears a kids size 8. I bought a kids size 10 so he could grow into it. It was so small, that it barely fit. I don't know if the adult sizes run the same, but Iwould go a few sizes bigger for sure.