Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
If you have a 30F already I'd say use that. If you are planning a purchase, I'd go to 15F or 20F. Typically it gets down in to the upper 20's-upper 30's IME at that elevation but snow and temps into the teens is possible.
I never thought of a liner. How much warm can you get from a liner? An extra 10°? I'll have to look into them, in not real familiar with them. ThanksOr put a liner inside the bag. Weighs a few oz, adds some warmth,and is easier to clean a liner than the whole bag.