I bought these for my 5 year old who wears a size 12 in almost every shoe. It was very tight on his heel. He said they were very uncomfortable so I sent them back. This was the second pair of DC shoes I tried on him and he said they were both uncomfortable. I'm not sure if this is due to the cut of the shoe or if increasing the size will solve the problem. I just won't buy them online anymore. I stick with brands that I know will work with him.