I've only warn them twice on my treadmill to get them broken in before our Hawaii Trip. They are comfortable shoes. I read some bad reviews that they come apart at the seams but that the company uses a new glue. Ya and does that glue stink. I have mine sitting out or airing out and the smell is going away but not sure I would wear them on an airplane, the passengers may not care for it.

The idea of the design fits though, more support than a sandle, airy and comforatble to walk it, its just the smell.