I'm an optimizer.
I want the best for the specific
purpose. Hence the threewheeler for having fun while driving. Well, fun does not really describe it. It's much more. But you know what I'm talking 'bout!
Choosing the right (short trip) rider bag was quite a hassle. Everything I had, from classic backpack to duffle and messenger bag ... everything was basically a big black hole with no inner "organization talent".
Not anymore with Peak Design!Everyday Sling 5L & Everyday Backpack 30L
Click here... YouTube:
She explains so well why!? 
