Found these on the net the other day and ordered a pair. They seem reasonably comfortable and don't fall off once you train yourself to hold them as you walk. It's not barefoot but it's close - and I much prefer these to the sticky-soled no-top sandals.
I find conventional zorries excruciatingly difficult to use; these seem to take the concept to another level. Thanks for the interesting post, but I believe I'll stay barefoot and feel the earth
Don't get me wrong, I'd prefer to be barefoot any day, but these seem to be a reasonable compromise for when conditions rule out bare feet.
I don't see them any better than just regular flip-flops if you have to wear something. In fact, I think flip-flops would be much more practical and easier to stay on, plus overall, just about as much of the bare foot is exposed.