My daughter regularly wears a U.S. Size 13 kids shoe, so I ordered this shoe in a 13.  It turned out to be incredibly too large for her.  To have the shoe in time for this week's start of school, I ended up ordering both a 12.5 and a 12 and having to pay for 2nd day delivery.  Thankfully the 12.5 is better but still a bit on the roomy side especially on top of her toes.  Now I need to repackage the 13 and the 12 for return.  Not fun!