I tried them. They’re ok, but anything other than foam ear plugs fit poorly in my ears. If I change my jaw position, they will open up a gap that lets the sound in. My outer ear just doesn’t seem to be shaped well for this kind of ear “plug.” That said, I also have issues with some ear canal plugs. Triple flange plugs will lose their seal and slip out. Those cheap orange, radian brand plugs however, I can drive deep and they’ll stay all day.