Ug boots are indeed comfortable. They originated here and in Australia. Here's a picture of some (http://www.newzealandsheepskins.com/images/sheepskinbootsrange4.jpg). My winter slippers are exactly like the ones on the far left, warm and comfy with nice thick soles for going outside without changing. I fancy a taller pair--as boots, not slippers--like the ones in the middle, but in chocolate brown.