I've used 'free returns' to develop a scary obsession with buying shoes on amazon...and then, groan, returning each one.  I seem to have a high instep, esp the left foot, and , well, often straps hit me in the wrong place and so on...

I ordered these in my usual size, 10M, and they were seriously narrow, and now the wides have arrived, and...dare I say they fit??? Can it be? And so comfortable!

They really do run narrow, however.  I see someone wrote another review saying that the ones she ordered thru amazon were much narrower than those she bought elsewhere, so who knows.  Another batch or something.  But all I can say is Sanitas in wide fall off my feet and I take medium in my clarks sandals.

Looking forward to taking these on the plane!