To be clear, these are for noise protection and are heavy. They are big enough that I have another pair of muffs for shooting rifles and some ($$) molded westone earplugs for working on loud stages.

I mostly use the 3m when I am running a chainsaw or driving vehicles with the windows down (I find that too damn loud for my tastes). For a while I'd track drums with them over my shure se215, but I've started playing quieter and have found that something like an HD280 cuts stuff down enough to track drums while feeling more comfortable.

On one hand, they are kind of expensive, bulky, and the mic isn't great. Also their "ambient sound" is not anywhere near as loud or controllable as the muffs I use for shooting. On the other hand, they pair well, sound okay, have a lot of noise reduction, and they seem pretty rugged. They run on AAs and Battery life is pretty good, too.