Sumdex Alti-Pac 640 Laptop Roller Backpack 15.4 - Black 2 side access padded zipper pockets for portable digital devices Spacious overnighter compartment with adjustable webbing straps Easy access top-load computer cradle with SensaTech ImpactGuard Notebook Protection System at bottom Detachable mesh pouch for travel or notebook accessories Organizer panel with key chain