Gave up after two exchanges.  Anybody that wrote that they can be worn without socks must of gotten lucky with the pair they received.  The first pair that I returned had a piece of the inner lining that was badly cut and would rub against the outer part of my left foot.  The second pair not only now did the same thing to my right foot but it was so poorly made that my feet sway inward as I would walk.  It was bad.  I realized that what ever they were now offering in relation to this shoe were rejects or something.  All that I know is that if they were not poorly put together for one reason or another.