>>3453903unless someone else's is carrying the water and other outdoors stuff just get a camera bag that will fit in your normal outdoors backpack.
I manage to fit a 18-35, 70-300 and a 50mm + Rebel t6 in this with extra batteries and other shit.
Just drop it on top my other gear in the pack and its as protected as anything short of a pelican case, the lowepro's that I checked out where pretty flimsy for their price.