EarCalm High Fidelity Concert Ear Plugs for Loud Music Noise Reduction Musicians Earplugs for Concert Music Festivals

These do a fine job at taking the edge off the harshest noise, but they aren't going to block a ton. If you want to block the most noise, you should get the foam plugs. But these will do for band practice and environments with an ambient noise that is a little louder than you would prefer. The keychain case it comes with is a bonus and easily fits in my pocket without bother.