Ear plugs that work.

[GoldOxide_imp]

The silicone plugs have evolved a little better every few years, and they are sustainable versus dumping foam plugs into the landfills like cigarette butts in the street.

Silicone plugs used to be harder on the ear canal, but they are better than they were. I think some are even biodegradable after 100 uses or so (that implies they are something else than silicone).