For PC (lenovo a 15-inch big enough) the bag is perfect. Keeping elastic. Semi rigid hull semi-rigid ... it describes well the hull. One has the impression that the PC is protected enough. But .... there is a but .... since when our cell they roam without their essential food? even one or two cables ....? because in or out of the bag there is no place for a power adapter. The bag is fine, but the adapter design hand it loses its charm. I almost bought a second .... it will be another model more rooted in the real ....