What size should I get my 40 lb, 5 year old son?
216428
I have 45lb and 42lb twin boys and got them both larges. They fit perfectly.
216429
I would suggest a large! My son is 3ft 6in tall and about 44 pounds and a large was perfect size for him. Not to loose or tight.
2086290
Our son is 40 inches tall and 35 lbs and it fits him quite well (very sturdy too). I'd estimate it would be just fine for your grandson. In any event, hope that gives you something to go by.
496988
I am not sure the size for your son. It definitely is not a large as I am 5'8". I would measure the circumference of his calves, knees, and ankles. Compare these measurements and determine what size to get. This is what I did to figure out what size I needed.
731495
I would go with size 8-10.... our son is 50 linches and 55 lbs and just alittle big .. a little room to grow for halloween
541066
I bought a small for my then 5 year old but he's in the 30th percentile. If your child is any buffet, get a bigger size.
197747
I got the large and my son is a 34-36 waist. Another thing you might want to know is they are gathered and a little full looking, but if the XL is too big you can exchange, but I would do the XL for 38 to be comfortable. JMHO.
526111
I bought a medium for my 8 year-old son. fits perfectly. He weighs 58 lbs. Hope this helps.
1409624
My daughter was 50" and 56lbs when i bought them and got her a medium. They fit perfect. I would say a medium would work fine for your son.
181469
My son is 30 waist and the men's small is good a little snug. I'd say a medium at least.
135508
I would get the large or extra large for sure....I got the medium for a five year old and it was a little big but he is growing into it and does love it.
749182
my husband is 5'6 and 160 pounds and got the small/medium. It's perfect for him. Note that my 4'6 son is 92 pounds. It fits him except for the small harness which hooks to tree is loose. I would suggest you go to the larger size
268952
My 6 yr old son is 47 inches and 56 LBS and he is using Size 8 now. and there still is a little more room for now.
2157785
I am 5-10, 195 lbs and the medium/large fits me fine! Should hit his legs just below the knees, so unless you are looking for shorter, that's the one I would recommend.
719347
my son is 46 inches tall, we bought small it was right fit or bit short I think medium would be good, thinking large would be too big
40880
Go with a medium. I have bought them for both my sons at that age. They are average size boys. Small was very tight and uncomfortable.
1303411
My son is 26 1/2 inches and weighs ~16 lbs and he wears the 6-9 month size. I think you want the 6-9 month size for your son, based on his height.
510662
We have the Large, and at 225 lbs, my son fit the upper extent of that size. I'd recommend the XL size to allow some comfort and mobility.