Wow, these shoes are awesome! My son has thick feet and most sandals don't fit because they are too tight across the middle of his foot (and some we can't even get on). The two strips of velcro PLUS the stretchy fabric really make this the perfect shoe. I just wish I had discovered them earlier! The only problem for us is that my son hates getting sand in his shoes...so we save these for water use or general outside use instead of wearing them to the playground!