I measured my kids foot with a tape measure, several times, several ways and ordered the size prescribed by the SANUK size chart. Way. Too. Big. I'm aware of the fact that they are supposed to be a little loose and floppy, but this is ridiculous and creates an obvious trip hazard for a 5 year old. They don't even stay on. At all. I think they might fit next year. Maybe. And yes, I measured correctly.