There are a few secrets to earplugs that I'd like to share. I am a musician, and until I got my electronic drumkit, i always wore earplugs while playing. Now, I use in-ear monitors, so that's not an issue, however, I still wear plugs to concerts (gotta maintain!).
First and foremost, it's better to spend $20 on one pair of plugs that you can wash & re-use than it is to spend $15 on 40 disposables. You'll be creating less waste, and the plugs will be of much higher quality- as will what you hear. Cheaper plugs block a varied range of sound, whereas nicer plugs block a uniform sound range- i.e., you'll hear everything, just at a lower volume.
Here's what I wear (concerts and riding):
They come with a case, and two filters. The filters change how much is blocked- i use the lighter ones for smaller shows, and the heavier ones for louder ones. i ride with the lighter ones in. I highly recommend them for riding.
good luck! protect that hearing!