New this winter to defend against the shoe-killing snow, salt, and moisture are MoovBoots. Stolen politefully from their website:

A technical feast, it combines a natural latex rubber shell that withstands temperatures as low as minus 25ºC with the luxurious warmth and breathability of 100% Australian Merino sheepskin. Designed to look as cool on the asphalt as in the great outdoors, MoovBoot will keep your feet toasty dry come rain and snow, whilst showing off your sense of style.

Sounds technical. I like it. Priced at $295 a pair.