Backpack panniers (that are still backpacks)

Step 3 Secure your straps and loose ends

It's pretty important that you figure out a way to secure the straps on your bag so that they won't get into the wheel while you're riding. This is going to be different with different bags, but with my bag I'm lucky enough to have side compression straps with clips that let me just put the backpack straps and the waist strap in, keeping them in front nicely and out of the way.

You'll have to experiment. If you don't have compression straps on the side, you could make a clip that lets you just connect your backpack straps together. This would be useful as a chest strap when you're wearing the backpack like normal, as well. You could also use a strip of double sided velcro to tie things on the other side.