I thought I would put this in Lite Philosophies and Practices to keep it generic. It's intended to be about stuff like how to figure out how much clothing and sleeping material you need, both in theory and in practice, and how much it weighs. Looking for diversity of opinion here. Science old and new. Folk-lore old and new. Even marketing hype is welcome. It's not intended to be comprehensive or compete with sound established theory and practice. It's to stretch and broaden our understanding of it and have some fun discussion and share some interesting links, both the useful and the arcane.
Here are some related links:
Wikipedia article on layered clothing...
http://en.wikipedia.org/wiki/Layered_clothingInteresting old article on antarctic clothing...
http://dspace.ncaor.org:8080/dspace/bitstream/123456789/291/3/article31.pdfVery interesting new book that discusses thermal regulation...
http://books.google.com/books?id=_hHp5ov...p;amp;ct=resultThread drift is encouraged. <img src="/forums/images/graemlins/smile.gif" alt="" />