Pelican Products 0S1050-0003-130 ProGear Sport Laptop Lite Backpack for 15-Inch Ultrabook/17-Inch Pro/Camera (Green) Impact Protective Laptop Frame 360 Protection: Light Weight with Superior Performance Rigid Front Plate 19.5 Liter Main Storage Compartment Ergonomic Design with Deep Ventilated Channel Back Impact Protective Laptop Frame 360 Degree Protection: Light Weight with Superior Performance Rigid Front Plate Integrated Laptop Sleeve 19.5 Liter Main Storage Ergonomic Design with Deep Ventilated Channel Back