I have one foot that is swollen just on the top of it and the ortho surgeon foot specialist can't find the cause.  I can't wear my regular size 8 shoes.  I was planning to fly out of the country so I needed something to wear on my feet besides slippers.  This looked like it would work so I bought an 8W and thought that if it was too big I could wear thicker socks.  The problem is that the back of the heel rises too high.  The edge rubs against the back of my leg/top of heel and it hurts just when trying them on.  I know it will cause a blister in no time, so I am returning them.  Other than this issue, the shoes were very cushiony - almost too much.  The elastic strap was a non issue for me since the shoe was so big.