Your your feet support your whole body, so what you put on them is incredibly important. I have purchased a new pair every year for each of my three daughters since the CNX line was introduced. (My oldest graduated to the adult version two years ago). I've also converted all six of my nieces and nephews. These sandals provide the support a full shoe would give but feel like you're wearing a sandal. Two of my girls wear them with prescription orthotics which fit comfortably inside. They are especially good at the cottage when playing on the rocks finds you suddenly in the lake or you get wet beaching the kayak but still plan to explore the island. Also, at night when the bugs come out, you can get away with 'socks with sandals' and long pants. However, I think one of the most important features is they are machine washable. I would use a mesh bag or pillow case in a top loader but no need in a front loading washer. Don't put them in the dryer but since they dry so quick, it won't be an issue. Note: i used to hand these down to cousins, get them back and give to my next kid. However, since they wear custom orthotics now, my girls get new every year, but they are still in fabulous shape to be passed on to cousins or charity.