I wasn't sure when I bought them whether they would fit well and stay on. But my son immediately wanted to wear them every where to the park, rock climbing, cycling and I had to discourage and limit their use. They fit well and are perfect for my 8 year old
I ordered these in a size 6.5/7 for my son who is ten. My son's feet are in no way an adult proportion size even though he's in an adult size and there was no way he could get his foot in through the neck of the shoe! I don't think an adult would ever be able to get these shoes on never mind my young son!
I am sorry to hear about your experience on the fit with these aquashoes, we would be happy to exchange or refund this product if you return it to us. If you are able to travel to a store we can have a look at the fit for your son and see if we can find a suitable size
They are designed to fit the average dimensions for this foot size and need to be a snug fit to stop them coming of in the water
Richard Taylor Water Sports Sport Leader DECATHLON