Originally Posted By: Nordman
What I did for my car kit is take a thick wool blanket and use it with a homemade Tyvek sleeping bag. The Tyvek bag is very small,light and cheap to build. And even though it isn't exactly bulletproof, it does hold up quite well.


Slightly obese custom home builder drives up and hijacks another thread. . .

I have noticed several mentions of using TyVek to construct different items. I am sure some have seen that DuPont released a new version called Thermal Wrap. It is reflective silver on one side and has a tested R2 insulating value. It might behoove one to switch to this product for future use.

It works, but is somewhat more expensive.
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I do the things that I must, and really regret, are unfortunately necessary.

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