Hmmm, so it has a nappa lining...the article doesn't mention what the exterior is though. Looks maybe like calfskin...Here's the article about this bag ..
If you look at the link @CeeJay put up it looks like there might be a few different finishes? It's an interesting-looking bag but I'm not sure of the proportions on the smallest size. And the biggest one looks huge, so somewhere in the middle maybe...OK, going out on a limb and saying I really like it.
But, if it is soft cowhide and scratches easily....fo'get it!