Bought as a Christmas gift for my 9 year old son, who yet started wearing a size 14, and these fit great. We jigs in Oregon, so first thing he did was put them on over his PJ's & run outside. Very comfortable and warm, he says. I love the double knee and easy to adjust straps. I also purchased the smaller version for my 5 year old son (size 5), which is a little long but good to go.