Our armored crewmembers still wear Nomex balaclavas to protect from flash fires...
...which is really just an update of a concept that goes back to the very first tank crews in WWI who wore chain mail veils to protect from spalling...
10 posted on 05/01/2012 9:32:39 AM PDT by Joe 6-pack
(Que me amat, amet et canem meum)