Dan, I'd just like to point out that every single person who ingested silver prior to about the end of WW I is dead.
Back to the original topic...
My cold-weather outings are pretty much limited to ice fishing. I love my set of silk top and bottom for a base layer. I wear fleece bottoms over that, and either wool or heavy poly shirt on top. I don a set of insulated overalls when I get to the lake, and if it's really windy, I'll put windpants and top over the whole works.
