Original hull. Nice finish, the touch is softer, thinner than the original hull imitation leather. All buttons are within the system is really convenient. You can answer calls and especially take pictures without having to open the Case. And this last point alone has justified the purchase. For if etuis portfolio / book offers good protection take pictures with Galaxy Note was just painful with this type of protection. The problem is solved.
I just regret that there have no more applications which currently takes advantage of this Case and the customization possibilities are very limited.