Case Logic Propa-116 Black Propel 15.6″ Attach?

Padded storage for a laptop up to 15.6″
Slip pocket for a tablet up to 12″
Organization panel with storage for a notebook, small accessories and keys
Quick access front pocket for small items
Dedicated file pocket
Luggage pass through strap for travel
Padded, contoured shoulder pad
Removable shoulder strap with swivel hooks
Padded grab handles