>>2310129You strap it to your bike. On my past trips I've had two saddlebags that mount behind your legs and I'll usually fill them with miscellaneous stuff like tools, spare tubes, snacks and other things that I might want access to without taking off all the straps and getting to the stuff I mount on the back.
On the back I put most of my stuff in a drypack and anything else like my sleeping bag and sleeping pad I'll strap to the outside of that, like you see in the pic. Plus I'll have a small backpack just for other miscellaneous stuff but I try keep that as light as possible.
