This shoe is very soft and comfortable but as others have noted, there is not a lot of support.  I usually wear a 7W  but I purchased these in a 7 1/2W.  The fit is pretty  accurate as my "fat foot" shoe fits fine and the "normal foot" shoe is a little big.  I've worn these for as long as 6 hours (mostly on my feet) and they are as comfortable when I take them off as when I first put them on. I prchased these in black and wear them with slacks.  It's great to be able to just slip on the shoes and go!