I you guessed it: marriage is almost perfect!
With hooks mounted on elastic (those who hold the upper corners of the tablet in the picture), this case is suitable for almost any tablet from September to October inches (and probably 8.5 inches by 10.5 I). For our HP tablet is almost perfect (what could have been a little more accurate). The material is strong, very solid, and soft. Regrettably, however, it is a bit messy to use (a friend dropped her cigarette ashes on the case, I had to rub quite a while to recover the original state of the fabrics ...).
Big advantage: neither side of your tablet is obstructed by the case - all your ports will be accessible easily. Moreover, this case offers three positions of inclination, which is more than enough for my use (watch a film in the process, watching a movie in bed, read my emails and new to the table in the morning, read a book in the living room evening).
Beautiful surprise therefore, especially for owners of HP Pavilion X2.
Feel free to ask me questions, I'd be happy to respond.