I bought a couple of HM40s last year to save my regular passengers from the crackly and crumbling headsets borrowed from the flight club. Not as quiet as my Lightspeeds, but clear and comfortable and they certainly look as if they should survive rattling around in the flight bag. Recommended.. .. .P.S. - If you go for the HM40s, make sure that you get the cloth covers to go with them. You'd be amazed at the difference having sweat-free ears can make.