On a bush plane flight in though I will have a fanny pack with extreme survival stuff in it, and that stays with me on the plane all the time, the only time I have something replicated.
Our SIL is a pilot for Homeland Security. He never flies anywhere, even as a commercial passenger, while wearing anything synthetic and he always has leather gloves in his carry on. Fire melts synthetics far faster than cotton or wool will burn and gloves are invaluable in an emergency where fire, broken glass, or anything sharp is involved.
