I think it is a good question since I haven't seen it too. Anyone can help?
I have just ordered my dress and I was looking for the same, zip up back covered by buttons.
I asked them to send me a picture of how it would look, and here is the pic they sent me.
Hope it helps.
thanks trotamundos! I have already send it to the weddingbee bride~ Hope it can help.
i just ordered from dressily me and they put a button/zipper back on it. It looks great!