[maerF0x0]

Custom mold earplugs from a ENT or other similar vendor could be a good fit for you (pun intended)

[dharmab]

Custom mold earplugs work _too_ well for motorcycling. They block emergency vehicle sirens.

I once got chased halfway down a mountain by a cop I couldn't hear (my KTM had nearly useless factory mirrors). Cop said he was leaning against n his horn and my foamies blocked it out entirely. Somehow I didn't get a ticket...

[ArchOversight]

You can get ones with certain dB reductions instead. Those will allow you to still hear but at a lesser level.

This is great for reducing wind noise while riding, but still being able to use in-helmet comms and hearing things like sirens/honking horns.

[aidenn0]

You can also get ones that have interchangeable filters for different levels of protection (and they even make ones that are relatively "flat" across the audible band, which is great for movie theaters that have the volume too high).

[maerF0x0]

Yeah this. Let them know what you're using them for and they'll tune the NRR and frequencies for your use case.

[akvadrako]

Custom ear plugs don't have a higher decibel reduction rating than foam ones.

They are mostly used for comfort and even frequency response.