On longer trips when by myself I will wear my etymotic ear plugs and listen to music. The set I have is pretty low profile but blocks road/wind noise and sounds great at low volume. However, they no longer make this model, and the replacement model sticks out too far to use with a helmet. Mine still work great, but once they are done for I will have to search out something else. Sounds like a lot of people like Shure earbuds. Around town, I just throw in foam earplugs. Too much hassle to hook up the music when only going 10 minutes down the road.
2002 Yamaha FZ1