I bought these slippers for the first time 3 years ago. Wore them until they wore the sole off.  Was really happy that they are still made. Bought again recently and the only difference is that they are a tad more snug than I remember but am certain they will loosen up as I wear them. Of course I wear socks with them so that an be the reason. I wear a 7.5 shoe but wear 8 boots so always went with the 7-8 size. I have flat feet and bunions too.  I do wear them outside to get the mail, probably shouldn't because the sole will wear quicker.  But for the price, I love them! Please keep making them!