This is sort of like a straight jacket made out of a tarp and a belt. I wonder how long this would last-but it’s still a classic MacGyver hack. This blog would probably be better if I included pictures. Oh well.
Space blanket as chaff
A space blanket is basically a thin mylar sheet. It has a nice property in that it reflects infrared radiation. The idea is that you cover yourself with this and when your body radiates infrared light, it reflects it back to your body.