These slippers are a bit heavier that I'm accustomed to, but they keep my feet warm!  I believe that I made an excellent choice.  With help from previous reviews, I ordered a size larger slipper, and it turned out to be the correct thing to do.  Have only had them for a week, so can't speak to the subject of long-lasting, but they seem to be durable.  Definitely rate it superior at this time.