It's the Châtaigne Couture from the Ambition Selection. Actually, I've just discovered
THIS BLOG ENTRY HERE in which the guy has reviewed a case for the Kobo Aura HD in the very colour and style I've ordered!! It looks lighter in his pics than other pics of the same colour I've seen.
But also, now I have an Espresso Aura HD, I find that it's much darker (almost black) than images appeared to show.
[Edit] Finally!! Dispatched today. I imagine I should get it on Monday.