Amazon has the YOREPEK Extra Large Backpack with USB Charging Port in $39.19 with free shipping.
- TSA friendly and Multipurpose.
- External USB charging port with built-in charging cable.
- Large capacity 45L with 20+ organizer pockets.
- Fits 17-inch laptops.
- Made of durable polyester fabric with heavy-duty two-way waterproof zippers.
- Breathable and comfortable.