Originally posted by: AndrewR
Have you ever worn Nomex?? I have a flightsuit that's made from it, and that sucker is hot as hell. Marines would drop like flies in the heat!
I'm not saying nomex would make the best underwear, but that flightsuit is probably made to a different standard with different properties in mind than an exercise underwear garment, with mainly flame retardance and perhaps strength above other considerations.
You can take cotton and make a light undershirt out of it or make it into some tough denim that no one in their right might would want next to their johnson.
In the same vein, I say that you can take nomex, design it for lightness and breathability instead of absolute flame protection, and use it as an expensive substitute for an already expensive Under Armour. The only benefit would be that it doesn't melt in a fire, not that it would actually be of much protection to the wearer.
I don't know if this works, but apparently someone already has tried out the concept.
Link.
The benefit is marginal IMO, considering all the other flammable gear a soldier wears over his underwear, and the expensive would be prohibitive, especially for the Marine Corps, which is why I half jokingly said they would have to win the lotto.