No mention of bone-conduction devices like Aftershokz? Probably the best solution IMHO - can still hear traffic and others with a stable band going behind your head and over your ears with nothing inside the external ear canal. Can talk and hear calls with an easy button for actions. Excellent fo...

cloud-9 - the problem with owEmerald is you don't get to use the fantastic QATAR lounges - in Doha you get the OneWorld First Lounge which is a tiny space much worse than the even the QATAR Business Lounge :-(