These shoes are very comfortable. I was worried about the strap not fitting my narrow heal but that proved not to be an issue.  I am taking them on vacation and have been wearing them for increasingly longer periods to make sure they remain comfortable.  I recently wore them to a food festival  that was on uneven ground with grass and pavement.  My feet were fine for the duration, in addition to the entire hour I stood in line on asphalt to get into the event.