I bought a pair of the Flare Isolate just before the recent trip to "Wytheville" (in quotes, because we never made it to Wytheville).
In short, the plugs do work.
The long --
@Rocket Scientist and you other smart guys and gals -- the skeptic in me ain't buyin' that *anything* metal in your ear does *anything* to alter sound.
My suspicion is that the metal piece serves the same function as an applicator for tampons -- giving the fingers leverage for proper insertion -- plus, the foam used seems to be denser than the closed cell plugs I have been using.
So I wouldn't pay a penny more than the cheapest version I could find -- and at that, they probably make them for 7 cents, and we pay . . . $34.99 ??? Really ?
I concur, on the recent trip, as long as I took my time, and carefully inserted the plugs just so, they made a big (positive) difference in comfort relief from sound and I could wear them all day without difficulty.