I am an ER nurse who is on my feet for 12 hour shifts, so I am always on the search for COMFORTABLE shoes.  I have decided through much trial an error that Clarks are the best.  I have 4 pairs of their shoes and these were my latest purchase.  The problem with some comfortable shoes are they are hideous.  These are stylish and comfortable to work in.  Although I would wear these as well to run around in on my days off too.  You cannot go wrong with these shoes.