It says its expanding, but I cant tell how much it expands by / shrinks down to.
I have a small at the moment which is fine for a tube, tool and a powerbar but occasionally it might be nice to carry a bit more.
The medium is the middle one in this picture (I think), is it shown 'expanded' and does it contract down to the inner zip line?
The reason I ask is that I dont want all my stuff rattling around in some big honking bag sticking out beyond my saddle when I dont need all the space.
I have the medium which expands by about a third of it's size, if you just have a tube, multi-tool, tyre levers, puncutre kit and a energy bar they will rattle around annoyingly. However I pack it out with a lightweight waterproof, when expanded you should be able to fit your huge wallet in there too.
