I will usually look for slippers all winter long, and purchase several inferior pairs.  I took a chance and bought a good pair, hoping they would fit and last me all winter.  These slippers are amazing!  I have a host of foot problems, and these still feel good.  They have an orthotic insert you can remove if you don't want that much arch support at times.  They are warm, and the velcro strap ensures a good fit, especially if you wear socks with them.  A great investment for cold winters!