If you want to be extra, and extra warm, grab one of these metallic winter snowsuits. Even astronauts will be jealous of you.
We've worn these fun yet functional snowsuits three times to Antarctica so far, and we can attest that they keep you warm, are easier to get on than regular snow pants, and they are water *resistant (not fully waterproof).
We recommend wearing a single layer of your favorite thermals underneath!