how eco?

I just got my eco|case. It is great -- I can hear the phone ring while it's in the case, and it is a snug fit. The inside does keep the screen polished, as promised. I haven't dropped it yet, but I think the case offers good protection. Beware -- I can't tell if the inside is made of suede or felt or some other product. As in it might be leather -- I can't tell, and I can't find any information on the web about it. I would rate it perfect if it wasn't for the secretive material on the inside.