18" Premium Laptop Messenger Bag * Product Material: Rip Stop Polyester * Product Weight: 1.81 lbs. * Laptop Compartment Dimensions: 13.25" x 10.5" x 2.5" * Expandable for more capacity * Large main compartment * Padded laptop compartment * Front organizer pocket * Zippered pocket on the back * Back sleeve to slide over handle of wheeled luggage * Front accessory pocket * Self-repairing excel zippers * Imprinted full interior lining * Adjustable/detachable shoulder strap