I have a P&S (Canon S120, which has been replaced with the G5X) case on my shoulder harness of my backpack for routes where my DSLR gets in the way (so, mid fifth and up at my choss pup ability). I use a velcro strap to wrap tightly around shoulder strap, then use case attached to that (something simple like this). Wrist laynard on camera is clipped to sway straps at top of shoulder strap with non-climbing biner to keep me from dropping it. Will work in rain and brush no problem, though in car wash situations I will put it inside my pack since I am not taking photos anyways. Never destroyed a camera in the Cascades, which I often marvel at, esp. given the terrain and weather. I am careful not to ever drop them though.