I'm a Kooba fan so I really like this bag! I like the shape, the color, I don't know about the size but it seemed pretty roomy so I think the price looked reasonable =)
From what I can tell from auctions I've looked at, it is a stiff double sided fold over top with faux buckle on top. There may be a snap too. I thought at first you had to unbuckle it to get into it!!!