It doesn't fit all that much! The bag is so structured and the double flap makes the inside even more small. I can fit my keys, clés with my cards, cell phone, digicam and lipgloss. Anymore and I would feel it a little cramped. I was surprised by how little it held when I first took it out.
Yeah, a medium definitely fits more that a LV pochette.
As a matter of fact, I just carried mine for the first time this evening..
I had a London Map book(it's not thin at all ya know..as you can see in the pic..yet it fits nicely not crammed), cellphone, my lil card/coin purse, a pack of tissue.. To be really honest, I was actually surprise that I could put the book in..
Oh yes, I forgot the keys..
And to answer to ur question regarding if all the medium are double flap..well I'm still no expert to Chanel..but so far when I was deciding to buy the bag at Chanel, I only saw double flap for medium.. (only saw jumbo w/o the double flap..)
yeah...
the medium classic flap is definately small. it is structures, its doesnt stretch, thus fits less. With balenciaga first, it kinda stretch, hence you can fit a lot more. I hope this make sense