I tried on the runway size, a 32cm? What I like is that it is entirely collapsible which makes it ideal for travel. And the closure is not the traditional Kelly closure, rather it is an Etriviere closure, which I've always found charming. Also, if your waist is small enough, the extra strap can function as a belt. I see it as a bag made for a woman constantly on the go who is need of a bag that she can toss in her suitcase and who needs a bag for both day and night.