These are actually very good water boots. They fit snugly around his ankles and feet, and you can adjust them with a velcro strap that runs across his foot and snaps firmly on the other side. My son loves these water shoes and I find them very comfortable for him, they are very flexible and the bottom of the shoe is very durable to play with. He can wear them like tennis shoes but still swim in them and go to the water park. .For all that has been said, I am sorry to say that they are very…