I live in the mountains of Northeastern Oregon and have snow at least four months out of the year.  I walk about four miles every day all winter long and work horses as well.  These boots were comfortable from the minute I put them on and are certainly warm enough for me while I am active.  I wear them with heavy wool socks, so did order a half size larger than what I usually wear in a street shoe.  I have just recently purchased these boots and have only worn them for a few days, so I can't say how durable they are, but they seems to be well-made.  Bonus: My foot still fits in the stirrups on my saddle with room to spare.  The  zipper works easily when the boots are on my feet, but they don't seem to want to zip once I take them off.  That's not a problem for me.  I just leave them unzipped when I'm not wearing them.