As I write this, I am wearing these boots--indoors!  We live in snow country, and winter has always been a challenge in terms of cold feet.  The sheepskin lining keeps my feet warmer than anything else I have tried.  I promised myself to never be without a pair (or two) of Emu's.  The arch supports are a great detail, and the outer layer cleans up well with a suede brush.  Our snow is generally quite dry, but if you do happen to get these wet, let them dry in a warm area and brush 'em up.  These are NOT a good choice for "mud season" or extremely sloppy weather.