Can't beat H10-40, mine still going strong, purchased with my first few months wages when i became an instructor in 1987.
All original except for:
One new microphone (seem to last about 25 years), two head bands that snapped, half dozen gel and foam ear seals, plugs and wires replaced from a donor old Dave Clarke when wiring went duff.
And the crack that appears from the two grommet locations.
Bit like Triggers broom.
Have noticed occasionally like today the damp can get into the mike and reduce it performance, but dries out.
Had a student that had bought some Bose noise cancelling, she didn't like them because she said she couldn't hear the engine note change.