Over the years, I've tried dozens of ear-plug types. The most effective by far are these. BUT: you have to insert them correctly by: (1) rolling each one tightly, (2) pulling back on the top of your ear, (3) inserting the ear-plug, and (4) holding it in so that it can expand properly. If the seal is good, you'll have peace and quiet while still able to listen to music or take calls if you have in-helmet speakers. Also: they lose elasticity after a few insersions, so toss them away after a day's ride and use a new pair the next day. (Just to clarify, I have nothing to do with this product except as a rider/consumer.)
Flents Foam Ear Plugs, 50 Pair for Sleeping, Snoring, Loud Noise, Traveling, Concerts, Construction, & Studying, Contour to Ears, NRR 29, Beige, Made in the USA
Flents Foam Ear Plugs, 50 Pair for Sleeping, Snoring, Loud Noise, Traveling, Concerts, Construction, & Studying, Contour to Ears, NRR 29, Beige, Made in the USA