Swissdigital Design backpacks are designed for the new "Commuter Urban Traveler". Take your laptop, tablet, cell phones, books, water bottle, mask and other essentials in your backpack for local trips to cafes, hangouts, parks, beaches, lakes, mountain trails or other places. BIBERSTEIN backpack is a stylish night blue backpack. The bag is perfect for students and professionals. This bag has many storage options to best support you in your everyday life. INTEGRATED USB CHARGING PORT: Equipped with a USB charging port, offering quick access to charge your phone and other electronic devices like smart phone, tablet, kindle, and all other USB devices on the go while using them at the same time. A power bank is not included. A special power bank is not required. US Patent No.: US 10,574,071 B2, US 10,931,137 B2, US 10,931,138 B2 and US 11,601,009 B2. RFID DATA PROTECTION: Travel with peace of mind. With an integrated RFID protection compartment, helps your sensitive personal data (such as credit cards, passports, and driver's licenses) to be protected from access by scanners. ADD-A-BAG SYSTEM: The intelligent Add-A-Bag system is not only a tremendous relief for your multi-luggage travel, but it is also extremely easy to handle. Simply connected your bag to the luggage with an integrated luggage strap, making it easy to release your shoulders. Dedicated padded laptop pocket fit 17? MacBook Pro compartment, fit every Notebook up to 15.5""x10.5""x1"" (39.3x26.6x2.5cm). WARRANTY: 2 years limited warranty on non-electrical products; 1 year limited warranty on electrical components/products. You may also be able to find warranty information on the manufacturer's website and labels on the products. Swissdigital Design has your back ... literally!