My husband has never went to ski, snowboard or any other snow sport LOL But he wears Smartwool in the winter to work, he works a lot outside....and they keep his feet toasty warm and they are nice and supportive. The extra padding in the front and heals is GREAT. He has never gotten blisters with new boots, and again they keep his feet nice and warm and his feet don't have that stinky boot smell anymore.
You can find them online if you type in a search for Smartwool Closeout or Smartwool Clearance....I find a lot of stores online that sell last years 'pattern' for really low prices, makes it easier to buy multiple pair. Oh and check out their thinner socks that go underneath too, they are wicking socks....my husband likes those too, and I'm sure they'd be great for a ski trip.