Bought these shoes in a size 12 for my son who wears 11.5-12 size shoe. They were way too tight. He even said his toes hurt after just tying them on. I measured them up next to his current size 12 shoe and these were notably smaller. I am gonna try a 12.5 because the shoe is adorable and looks well made. I will update my review upon testing longevity (if the new size fits!)