Isn't the point of a vapour barrier to keep your warm body vapour in the bag, thus reducing heat loss? Would that not increase the humidity of the insulating sleeping bag and thus rule out the use of a down bag over prolonged successive nights? Marvin I use a vapor barrier on really cold nights, well below freezing, all the time. I am a very cold sleeper who will sweat a lot when too warm. The vapor barrier, strangely, does not get wet inside when I sleep. I have never tried getting into it with wet clothes to dry them, as I do with other sleeping systems. I know nothing about physics or anything else that might explain how this works, but it does. I prefer to use a heavy fleece liner, but sometimes weight and space require the minimalist vapor barrier. It is a convenient backup to have along. Jim Tibensky *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Mon Sep 29 2003 - 14:07:06 PDT
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