These are really soft and comfortable for the most part.  Unlike other slippers I've had, my feet don't sweat in these so they seem to breathe well while still keeping my feet warm.  My only issue is the arch support takes some getting used to as it doesn't really fit the arch of my foot the right way.  Also, I wear a size 13 shoe so I got the XXL (13-14) and they barely fit so be aware they seem to run just a bit small compared to regular shoe sizes.