13 inch laptop backpack made from 600D/300D, 2 tone polyester with hidden zipper on the back. This makes it harder for pickpockets to access the contents of the bag, keeping your things safer. The large main compartment has a protective pouch for a 13? laptop and various pockets. With sturdy PVC lining that protects the contents against rain. Front compartment, 2 side compartments and carrying strap. The back and adjustable shoulder straps are fitted with comfortable foam.