Does any one have reliable data on the warmth, breathability, and time-to-dry-out of wool versus synthetics? I've seen the manufacturers claims, but don't trust any of them. I need to upgrade my base layer (ie. next to skin) for a mid winter section hike, and also something at the Grand Canyon in January. I tend to sweat even in cold weather, and often strip down, open zippers, etc. if I'm on sustained uphill. Even with that, my base layer is generally damp when I get to camp. I want something that really breathes well, retains maximum warmth when damp, and then dries out as fast as possible if I wear it around camp.
Also, what do you like to hike in in cold weather? Just your base layer, or something on top of that? If so, what goes on top?
I'd appreciate any advice.
Stickman