Be careful, they can get stuck in your ear!
I bought these primarily for use on my motorcycle, under my motorcycle helmet. They did a good job of reducing noise but after I needed a pair of pliers to remove one that slipped in too far while I was putting my helmet on I put them on the shelf. I now use the disposable foam earplugs (Hearos) and they work much better for riding.<br /><br />I never had a chance to test them at a concert since I'm now nervous about them becoming stuck.
Rating: 2 stars