Targus Sport Backpack for 15.4-Inch Laptops, Black with Gray Accents (TSB212) Padded Computer Compartments for Notebook Protection Comfortable Padded Shoulder Straps Multiple Compartments for Your Files and Accessories Heavy-Duty Fabrics with Nylon Webbing Reinforcement Dimensions: external 17.75" x 7.25" x 21.63"; computer compartment 11.5" x 2" x 15" Limited Lifetime Warranty: At Targus, we stand behind all of our products; We offer one of the most comprehensive warranties in the industry so you and your device are covered