All the hype over these Austrian wool slippers is true--they are SO comfortable and warm and fit like a second skin. By far, far the best slippers I have ever tried. I liked my Ugg slippers--the fleece lining was very warm, but they were flat and non-supportive (I always felt like a duck out of water in them). These Haflinger's have support and even feel a little spongy when walking. These are defiantly for indoor only, but after wearing them for a few weeks, I'll never be without them again! Worth every darn expensive penny!