If you need some ear protection I'd recommend against the Sonic Defenders by Surefire Ear Pro. They're plug in the ear ear protection that... well... doesn't stay in the ear.
These little buggers had the standard three ridges that went into the ear canal, but backign them were plastic sections that would sit in the outer ear. But the things could not hold and would work themselves out.
Even when they stayed in, they gave extremely sub-par protection. After less than 5 rounds I had given up on keeping them in. And on the walk back to the bench one fell right out, and I couldn't find it.
So, that's a clear sign right there.
And that's another lesson, always bring spare stuff in your range bag.