RE: Wool clothes and Elk hunting
Wool is not your best choice for cold weather conditions in the Colorado mountains. You sweat in wool. Eventually, you get cold. The best setup is as follows:
1. Next to your skin. Polypropelene or Capeline long underwear. Underarmour "Cold Gear" for really cold conditions.
2. Over That: Quality Polar Fleece. Various layers if it is really cold. A vest is nice to have as well.
3. Shell: Gore-Tex parka and pants. Uninsulated with mesh lining. Good for all conditions.
4. Boots: Gore-Tex with Thinsulite. Polypro liner socks under whatever level of cold is dictated for the insulating sock layer.
I have skied and hunted in Colorado since Richard Nixon was president. This is your best outdoor clothing choice.