I wore these for an entire day at work and I do a lot of walking.  The shoes themselves were comfortable...but the straps across the feet rubbed a bit...not enough to create any blister from an entire day, but just enough to be sore.  I will wear them again though.  The straps across are hard, almost like jean material...should be softer, that may help.

I wear usually somwhere between a 9.5wide and 10reg...so I ordered a 10.  Fit well...with the slight tightness across the toes.