Tank bag or backpack?

[Amber Lamps]

Originally Posted by Particle Man

I have a backpack that folds up into a small pouch that I keep under the pillion seat that has come in handy several times for leftovers from restaurants riding 2-up with the wife...

I got something like that from Radio Shack for $5... it stuffs into the tail and I use it if I stop for a couple things on my way home.