In an attempt to reduce the amount of cold-induced moaning, I was thinking of getting the better half a pair of those North Face Duvet Shoes. I've yet to see any in-the-flesh, so was wondering whether they're actually practical feet-warmers to wear whilst spotting/resting or whether they're glorified indoor slippers.
The websites seem to mention actually having grip on the sole, but i wonder if they're more for serious alpine tent wear as opposed to spotting lower tier at roaches...