Combination of Hard & Soft Material: The backpack comes with a front made of hard polycarbonate material and a soft polyester at the back. The hard front not only provides protection from potential thieves but also gives the Etna a distinctive look. The rest of the bag is made of water proof, tear-resistant and anti-scratch 1680D special polyester built for lasting durability. The zippers are also water proof. USB Charge Port: The backpack comes with a USB charge port and a free lightning cable. You can easily and conveniently charge your phone, tablet and other devices without opening the backpack. Power bank not included. Multiple Compartments with Unique Laptop Compartment: The laptop compartment is a separate zippered one and has a unique, highly cushioned interior to ensure safety of your laptop, mobile and other electronic devices. A separate zippered section includes an office organizer and mesh pockets. A secret zippered pocket at the back is provided. Polyurethane Handle and Cushioned Back: The soft polyurethane pick-up handle, on top, adds comfort along with the perspiration-free air mesh padded cushion on the back of the bag.