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I have used the Ultimate ears ones, they are brilliant, but as one chap said above, if I have them in for an hour or so, and I do trips to France, I suddenly find one side cracking a gap if I move my...

I use these too and find them genuinely brilliant.

https://www.flareaudio.com/collections/isolate

And a set of these for the days I spend hours in the saddle on a motorway.
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