I have worn several styles of Earth shoes over the years.  Always find them comfortable if not very stylish.  The Exer-Walk is the best ever.  When I got my first pair I immediately ordered another because I was afraid they would discontinue the style.  Recently I bought another pair in the grey for a slightly dressier look for work.  I am long past the time when I would wear shoes for looks rather than comfort!  Although I have a mainly desk job, I do spend a lot of time running up and down stairs and on marble floors.  I wear the Exer-walk every day and for almost all occasions.  Highly recommend for anyone with foot or back problems.