My child is 13 and I'm not sure if he should be in the 'youth' sizes or a small men's. He is 5'1" and weighs 98 lbs. Any info would be appreciated.
181798
My guess would be youth. I personally have a Large that fits well, and I'm 5'11 and 230lbs. Best of luck.
181799
I think you would be able to get away with ordering a youth x large. They are usually cheaper in youth sizes and I think it would fit fine.
948688
I think he is borderline, he might be able to squeeze in for a little bit before outgrowing soon, esp. if he is tall. I bought XL pairs for my two kids. My daughter is almost 13 but about 82 pounds and short at about 5 feet. She can wear these pretty perfectly. The younger kid is even shorter but weighs more, like almost 90 pounds, and I don't think he's tried them yet but I think it will be a squeeze and he can only wear them this year. For your son, I agree, adult Men's sizes are way too big, the only other option he might have is a women's size XS if you do not risk the Kids XL.
706420
My son is four years old and height 41.85, I got the Batman Muscle Chest Child Costume on size small and it was perfect for him. I ordered the size medium which is for ages 6/7 because I don't like him to use tight clothes and it was to big for him. I think the medium size will be good enough for your son or try the large size, it will be a little bit big but it will be ok.
493242
My son is 7 and weighs around 50 pounds. He is very slender and tall and it just fits him. He will not be able to wear it after this summer, I imagine it will just be too tight at that point. I hope this helps.
288186
My son is 8yr old and weighs about 52 lbs. He's tall and skinny. I got him a medium. And it fit perfect. It was super cold here for Halloween and he had on 2 shirts underneath. I hope this helps.
14305
this summer I bought two O'Neil Youth Reactor full suits for my two kids. My son is 11 and my daughter is 9. I bought a size 10 for my 9 year old (which is small/petite for her age group). The suit was big on her (she normally wears a year behind her age) but the suit still fit ok. I expect next summer it'll fit closer to perfect. My 11 year old son is average to large and his 12 fit him pretty well. I expect he'll use it next summer as well, but after that will likely need another. I'd suggest buying the 8 for your daughter. Too small and the suit is useless. Even thought my daughters suit was loose, it didn't bother her at all, and she was thrilled to have the full after freezing in an ill-fitting shorty. this summer I bought two O'Neil Youth Reactor full suits for my two kids. My son is 11 and my daughter is 9. I bought a size 10 for my 9 year old (which is small/petite for her age group). The suit was big on her (she normally wears a year behind her age) but the suit still fit ok. I expect next summer it'll fit closer to perfect. My 11 year old son is average to large and his 12 fit him pretty well. I expect he'll use it next summer as well, but after that will likely need another. I'd suggest buying the 8 for your daughter. Too small and the suit is useless. Even thought my... » Read More this summer I bought two O'Neil Youth Reactor full suits for my two kids. My son is 11 and my daughter is 9. I bought a size 10 for my 9 year old (which is small/petite for her age group). The suit was big on her (she normally wears a year behind her age) but the suit still fit ok. I expect next summer it'll fit closer to perfect. My 11 year old son is average to large and his 12 fit him pretty well. I expect he'll use it next summer as well, but after that will likely need another. I'd suggest buying the 8 for your daughter. Too small and the suit is useless. Even thought my daughters suit was loose, it didn't bother her at all, and she was thrilled to have the full after freezing in an ill-fitting shorty. « Show Less
407342
My son wears a size 3 in youth. I ordered him Youth Small and they fit perfectly. I do wish there was a more accurate way to know you are ordering the correct size. But I guessed at it and it worked out for us. And the best thing about Amazon is, if it doesn't fit, you can easily exchange for a different size. I hope this helps!!
434039
My son was 23 lbs. at 2 1/2y when he started wearing this. (yes, he is very skinny.) I personally think this underwear is true to size. I'm sure it shrunk a bit after wash, because they fitted better on him. I do not recommend size S to your 34lbs. child. It would be really, really small.
519904
Not sure...sounds like you're on the bubble between Peewee and Youth. If it helps, our 7-yr-old daughter got the Youth size when she was 51" tall and wore them comfortably.
1288746
I purchased a 12 in for my 3 year old and 16 in for my 4 year old. Our eldest fit well but it was slighty to big. He fit perfect a month later as you know they grow too fast. If I put the 4 year old on the 12im his knees would have been in the handle bars. I would say go with the 16in
1421942
I purchased this for my grandson. I got him a youth large. He is 119 pounds and about 5'5. I would get the same for that size.
1701599
I would say if your son is average size he probably would wear the adult size. We have the children's size and it is very small. They are very stretchy (like a sweat band)but you would not want it to be too tight.
961366
How large is your 13 YO? This is a youth size. If your child is wearing child sized shirts, this will work. If your child is wearing adult small or larger, buy the adult sized guard, instead. My is is 4'6" and 70 lbs. He wears child small/medium shirts. This guard is a tiny bit large but completely comfortable to him.
922056
I think it might be to small. My son was 9 when he wore it and he was 4'3" and about 60lbs.
470442
these run very small for size description given... the medium fits my 9 year old grandson who is about 4'6" or 7" and he weighs only about 85 pounds I think you would need to go up at least two sizes
48316
When i order this item my for 11 yesrs old and i order the L youth. I will order the M for 9 year old, but that will depande how gig he is!!!!!! Today new generations are little biger then we was at they age. No hard feeling whan i said big. Thank you.
706419
Size 4-6 in clothing size is preferable for an age 4 kid. My son is 4 years old alomst 5 weighs about 45lbs slim and usually wears 5/6 clothing to fit comfortably. So I think the small 4-6 would fit perfect in costome its totally a different material than regular clothing unless he's taller, then go with the next size. Hope this helps!