Backpack for all laptops up to 15.6-Inch. Durable nylon material to protect against abrasions and punctures. Ergonomic contoured shoulder straps for comfortIt is made with a unique ball-pattern fabric that has a smooth comfortable touch. The walls of the case are constructed with different thicknesses so as to provide both protection and functionality in the different viewing modes. Convenient port cut-outs line the edges of the case.Made from polyester material for a strong and durable design.Made from polyester material for a strong and durable design.