smartwool makes (or made?) an ultra thin pair of socks of which I bought like 6 pairs prior to my 2013 elk trip. Cost me about $10/pr on Sierra Trading post back then. I still have one pair although they probably wont make it thru next early deer season. Knowing what I know now I would have paid 2x the dollar amount and bought 2x as many pairs. I haven't been able to find the name of exactly the same model but I'll keep looking. If you can find them snatch them up.
funniest thing about that is I was standing in the express line yesterday with a 12 pack of beer. Old lady in front of me with a cart full of cat food slid out a nasty one. It was so bad I couldn't take it and said "good god lady, that's awful. I pointed at the cat food- "Is that all you eat?" She was so embarrassed she walked out of the store. The kid at the register lost it.