Let me first say that the only problem we had with these was the sizing, they are SUPER CUTE!! I ordered these for my son for an upcoming trip to Disney World. I used the sizing chart on the Crocs website to measure my son's foot for sizing before I made this purchase. Using the size chart he should have fit into a size 1 in kids (he is 6 years old). So I went ahead and ordered the size 1. They were way too big! I mean, like over an inch! I sent them back and ordered the size 12/13. I read somewhere that there is a huge jump in size between the 12/13 and 1 size, so I am hoping that the size 12/13 will work.

Follow up: I just received the size 12/13.  They are still too big- but not nearly as big as the size 1.  He might be able to use them, but they might slip off of his feet.  He currently is wearing a size 13 in Nike.  The size 9/10 probably would have fit him perfect.