Man, I don't get this. I am very particular about my feet. They need to be protected, kept dry and supported. These things seem suited to sitting around drinking beer.....if they were not so dang goofy looking. Would not be caught dead in a pair, sorry.
I agree that they're a bit goofy looking, but I stopped caring about what people think of my appearance in high school, honestly. I think there is plenty of support from what I've heard and read, and these actually promote proper balance and movement.