One interesting thing about this is that standoff from direct body heat matters. A layer of space blanket in a jacket is an improvement over nothing but not par

One interesting thing about this is that standoff from direct body heat matters. A layer of space blanket in a jacket is an improvement over nothing but not particularly effective. Purpose-made material like https://fibrotexusa.com/ulcans/ https://fibrotexusa.com/ulcans/ works better but the standoff effect is still noticeable. The implication of this is that it's easy to conceal a fixed position from thermal sensors, but a lot harder to conceal a person on the move. If that fixed position itself has thermals, it can cause big problems for attackers.