actually they changed the underwear for F-1 drivers & it saved Romain Grosjean's life.
The F-1 drivers were bitching because they made the fire retardant underwear thicker. Making it hotter in the car. Didnt change for the hands. When he was trapped in the fire. The only areas that got burnt was where he had the old thinner stuff on. I assume this is what they are talking about when they say underwear. Didnt care to read any articles. So if I am wrong. My bad.