i think the newer damier are using red microfiber, rather than the terracotta alcantara...my duomo has a red microfiber lining and the saleya have red microfiber as well.
I have a damier papillon and the lining is cross-grain leather. I love the bright, terracotta linings of the other damier bags, so gorgeous It goes really well with the color and pattern of the bag.
Ya, the damier papillon has that annoying tough orange leather thingy as the lining. I don't even know what it is. I just hope it won't crack and starts to flake off on me.