3 ms·
Emergency (foil) blanket saved my life one night when I was freezing. I carry one more often than not now. Minor space/weight penalty to avoid hypothermia. Cam
by bix6 5y ago
Emergency (foil) blanket saved my life one night when I was freezing. I carry one more often than not now. Minor space/weight penalty to avoid hypothermia.
Camelbak 3L comes with me on all road trips but I’m considering a permanent water tank in my car.
- TedShiller 5y agoHow do foil blankets work actually? Doesn’t metal foil transmit heat very well which would make them a bad blanket to trap heat?
- nerfhammer 5y agoIt's actually mylar that they're made of. https://en.wikipedia.org/wiki/BoPET https://en.wikipedia.org/wiki/BoPET
- jwagenet 5y agoI believe besides acting as a wind barrier, the foil reflects heat internally. They would not be effective in direct contact with skin and another surface.
- Cerium 5y agoI spent a night in the woods with a Mylar foil blanket. It blocks wind and reflects the heat back to you. When it came loose I would immediately wake up cold and reposition the blanket. The thermal effect was instant on and off.