Review on Teva Kids Hurricane Sandal - Medium Boys' Shoes available at Sandals by Dave Hammon

So these are the third pair I've ordered for my son, they were all too big. I ordered 5, 3 and 2 thinking they would run smaller. At first I thought I was crazy for sending the others back and there was no comparison. are they exactly the same size? Literally the same size. The second and third size are pictured together, there is NO difference between them, it might just be a label error, but it's a bit frustrating. (I didn't have a size 5 to compare because I had already sent it back, but my son was the same size as these two?