Etymotic Research ER20XS High-Fidelity Earplugs

I got the standard fit ER20XS, which fit very well. I wore these ear plugs for a 4-day hard rock music festival. The sound quality was very good. The plugs are fairly nondescript when you have them in. Nothing flashy, just effective. No lying in bed with ringing ears. They stay in and aren't painful. I actually wore the Etymotic plugs all 4 days, which for me is really saying something! I was impressed. I'll definitely be using these for the upcoming summer concerts. Once I learned how to take them in and out of my ears, I found it easy to pop them in when approaching a stage versus having them out while walking around or listening from the back. At one point the little storage box popped open without me knowing and I lost the cord, which I wasn't using anyway. Make sure you snap that container all the way shut. I have tried other foam earplugs at concerts before and found they distort the sound and block too much of the music. I always ended up abandoning them. No such disappointment with the Etymotic ear plugs. I definitely recommend these.