As soon as I opened the box the smell hit me, very strong chemical smell. So be aware, it is men size and not womens no matter what you check you will receive a mens size. Within a couple of weeks they became loose fitting. I?m normally a size 12. I have had these headphones for about a week now, so if anything happens I?ll change my review. First I want to say the seller sent this item fast to me, so kudos to that. I am very happy overall! Maybe they are included and someone is snagging them?Overall, it seems to do what it is supposed to so I can only rate 4/5 on durability so far. They are a bit small if worn with socks. I assumed it was a genuine mistake, returned the slippers and order same again, in size 3.