I have a 4A foot and normally could get a 8 1/2 slipper that is lined.  This one is an 8 and lined and seems wide.  I have to wear socks inside them.  But other than that, they're very nice.  I didn't read that they weren't "real" fur inside though, they are fake.  My fault as I have two other Acorn Slippers I purchased from Amazon and they were the real deal.