B.W.
We had stinky feet issues with Keen sandals too, and I gave up on them after a summer. Why spend that much if the kid is going to have feet that smell like a barn? LOL
My boys do wear Crocs all summer long. But we live out in the country and its so nice to have them just be able tobe washed off when they get dirty. They hold up well too, easy on and off, and they have good support for little feet.
We have used the neoprene type Nike sandals too, they are comfy for kids' feet too.