USB TYPE C INTERFACE DESIGN: Built-in mobile power pocket and charging cable, the included USB-C cable is intended for use with a power bank featuring a USB-C output or with the use of a compatible adapter, so that your mobile power in the travel backpack can achieve charging SAFEGUARD YOUR PRIVACY WITH AN INTEGRATED RFID PROTECTION POCKET: Travel without worries. The RFID protection compartment protects your personal data from being accessed by RFID scanners (e.g. credit cards, passports and driver’s licenses) Multiple Pockets: This computer backpack features a multi-layered storage system including 1 front and 2 side quick-access pockets for on-the-go items. This bookbag also comes with a luggage strap, letting you attach it to suitcases for one-handed pulling during travel DESIGNED FOR COMFORT: The 3D ventilation system keeps the back fresh. This makes shoulders feel more comfortable and less burdened. Bag volume - 31 L US Patent No.:US 10,574,071 B2；US 10,931,137 B2；US 10,931.138 B2；US 11,601,009 B2 Swissdigital Design Business Laptop Backpack with Smart USB Charging Port Travel Backpack Fits 15.6 inches laptops for Age13 and Up.