I went to my outfitter today to pick up a new set of mid to heavy weight base layer thermals and I'm still recovering from sticker shock after looking at the prices on smart wool, calpine and other major brands. I searched around online and there's a huge variation in price among brands (no surprise) does anyone have suggestions for less expensive brands that hold up to winter backpacking?
A couple of related questions:
I've seen a lot of posts from the more experienced winter backpackers on the site stating that that they use silk as a base layer. Does the silk base layer take place of heavier long underwear? If so, does it provide warmth or is it just for wicking?
What do people use for layering systems for pants in the winter? The last few years I've been making due with my regular nylon zip pants and a heavier pair of thermal underwear, but this has left a lot to be desired and I think it's time I make an upgrade.