I am counting on the fact that the bivvy bag and the drishell outer would shield against snow drippings and moisture. It should be able to take one coffee, but of course with down if you get it really wet, you are scre.......[piep]
I have thought about a synthetic outer and down inner, but too many coffees in the inner bag and you are back in trouble so I am not sure this helps a lot. Going all synthetic is the safest route, but will result in the biggest heaviest bags.
I have thought about a synthetic outer and down inner, but too many coffees in the inner bag and you are back in trouble so I am not sure this helps a lot. Going all synthetic is the safest route, but will result in the biggest heaviest bags.