These slippers are very comfortable and very well constructed.  I read the reviews before ordering and there were a lot of people saying the leather string comes out easily.  I haven't had a problem with it yet, but it doesn't really do anything so no biggie.  They seem to run a little large.  I wear a 16 and ordered such.  They seem to be more the size of a 16 1/2, but it's no problem as a pair of socks solves the problem.  The sole is hard rubber and attached very well.  Uppers are suede, very soft and look very nice.