The size was just fine for my child. I bumped the size up from his last pair and they fit great, he uses them every day. The design goes great with his P-40 Warhawk hat.
Rated 0 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Large
Rated -1 on a scale of minus 2 to 2, where minus 2 is Narrow, 0 is Just Right and 2 is Wide