Primarily for general aviation discussion, but other aviation topics are also welcome.
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By MichaelP
The purpose of the cotton covers on the Bose is to increase the life of the ear cushions.
Unlike the gel seals on the Peltors and DCs, the ear cushions turn to powder, greasy black crumbly powder, on the Bose headsets. It’s nasty!
So I use them on the Bose, but not on the Peltors.
PeteSpencer wrote:So one pays nearly a 4 figure sum for a headset whose ear pieces disintegrate into black greasy grunge!

It must be your greasy ears. Mine lasted ten years before I had to spend a few quid on new ear covers.