This is a rather impulse holiday purchase. My first chanel. Im not sure if its me.. Im usually a colourful balenciaga girl and this looks a bit "serious".. Anyhow is this called the classic flap? The SA says its the medium size. And the zipper inside? How does it work? I mean is it for decorative purpose or?.. I got it for 83141 bhat, which works out to be around: SGD3650. (after 7%tax refund) Please tell me its cheaper than in Singapore.. The confusing zip..