My son is currently somewhere between medium and large, so we typically go up to large and that's often baggy on him. These (sz large) were very tight on him. Go up at least one size! Otherwise, they seem well enough made and would probably be comfy.

We got these for our son to wear under his football uniform in the colder months. He loved them. They are very warm not not incredibly thick. They were a little big but it didn’t effect his comfort level and he can grow into them. We got a set for our daughter too and hers were the same. A big large but perfect in all other ways.

This is very soft and comfy according to my son and warm. I washed them as soon as I received them and they didn't shrink or create lint. I had originally ordered a medium, based on the product sizing but it was very small and I had to return it and order a bigger one. Delivery was very fast on both occasions. My son is 6, tall and muscular. He's 4'4" (52") and 69lb. He usually wears Youth Small to Medium in major brands. Medium was more like 5T. The XL fits perfectly but will be small next…

I bought these in size XS for my average size almost-five year old boy, and the arms and legs are long on him as I expected they would be, but they fit so snugly it won't matter and he will just be able to wear them all the longer. I had him try them on right away to check the size, and he loved the feel of them so much he didn't want to take them off. I anticipate these will be a big help in keeping him cozy during outdoor activities here in upstate NY.

Bought these for my grandson (12 years old) to wear during an outside event. He liked them the moment he put them on. Fit great and nice and warm. Fabric was very nice quality.

Bought this for my son to wear under his hockey equipment. Delivery was fast and the product was exactly as described. My son said he was super warm in it and after washing, it didn't shrink. Highly recommend and will probably buy more soon.

It's a little smaller than I thought. So, probably will get one year of use out of it. It was very comfortable according to my kid.