How to carry OM-D E-M5 to be accessible when backpacking?

What I do is put the camera in my Tamrac 5682 pouch that has D rings.  Then I use small caribiners on both sides to strap the pouch across my chest to the pack straps on either side.  That way, the camera is readily accessible, protected from dust and rain, doesn't bounce around, doesn't interfere with my poles, rope, or ice axe; and it's easy to remove if I want to take the pack off.

I've seen guys carry SLRs with Li-Ion batteries naked in really cold conditions with no problems; but in low temps, I carry the camera in a pouch inside my parka.

Dave