I thought these would be great and keep my feet warm through the winter, not so much. Inside of slipper has nothing to keep you foot warm, ALL the wool/fleece is all on the outside and does nothing to keep you foot warm, I thought of adding inserts for added warmth and support, the outside bottom sole is thin with no solid material on the foot bed, it  is flimsy and does nothing to keep your foot warm. They look impressively warm and are not at all. I never wear them.