Port Authority Commuter Backpack. Our expansive, durable backpack has a checkpoint-friendly clamshell opening-making it user-friendly while safeguarding your laptop and tablet. Coordinates with the Commuter Brief (BG307, sold separately). 1,680 denier ballistic polyester in solid and two-tone accents Back laptop clamshell compartment with padding Center compartment with interior file divider Tricot-lined zippered pocket Front organization panel Ergonomic, adjustable, padded shoulder straps Luggage trolley pass through on back Web top handle Pullman handle attachment strap Laptop sleeve dimensions: 11.75″h x 11″w x 1″d; fits most 15″ laptops Dimensions: 17″h x 12″w x 8″d; Approx. 1,632 cubic inches Note: Bags not intended for use by children 12 and under.