Just to add to what Taybird said...
I tried the old Bose X and they were horrible for me. The new Bose A20s aren't as bad, but just don't seem to fit me like the Lightspeed does.
Everyone has a different head and ears! So if possible, it is a good idea to try and find what fits and feels the best when you're going to drop the $$$ on a new headset.
Not so much of an issue with the PNR headsets, as they all basically just clamp the earcups to your head as hard as they can!
