FENRUIEN Expandable Travel Backpack for Men, Water Resistant Computer Backpack with USB Charging Port，Black Laptop Bag 17.3 Inch

Spacious Capacity: With dimensions of 18.9 x 8.7-11.4 x 12.2 inches, this expandable backpack offers a flexible 35-45L capacity, ideal for business trips, daily commuting, or travel. TSA-Friendly Design: The 180° opening and luggage belt simplify airport security, making it convenient for frequent travelers and business professionals. Durable Materials: Made from water resistant 1800D Oxford fabric, with a gray-orange polyester lining and metal zippers (not water resistant), this office backpack is built to handle daily use and various weather conditions. Comfortable Fit: The shoulder strap with a chest strap, combined with the EVA back panel, ensures comfort during long hours of travel or daily commutes. Convenient USB Ports: Featuring USB-A and Type-C ports, this tech backpack allows you to charge devices on the move, making it an ideal choice for tech-savvy commuters and travelers