ExpandPro 40L Large Travel Backpack

40L expandable travel backpack with USB port and laptop sleeve.

The ExpandPro 40L is a large travel backpack built for carry-on trips, business travel, and work commutes. The expandable main body lets you scale storage up for weekend gear and back down for everyday use. Includes a laptop compartment and an external USB charging port.

Why this 40L travel backpack?

• 40L expandable capacity: grows for travel days, packs flat for daily commutes.
• USB charging port: route a power bank inside and charge a phone from an external port.
• Laptop compartment: dedicated padded sleeve for a laptop or tablet.
• Adjustable, padded straps: built for full-day wear at the airport or on campus.
• Multiple compartments: organizes cables, documents, clothes, and shoes in one bag.

Specs & details

• Color: Classic Black
• 40L expandable capacity
• Built-in USB charging port (power bank not included)
• Padded laptop sleeve
• Multifunctional storage compartments

Frequently asked questions

Is a 40L backpack carry-on size?
40L is at the upper end of most carry-on limits and fits within typical US domestic carry-on dimensions when packed normally. Always check your specific airline's size limits before flying.

How does the USB charging port work?
The bag has an external USB port wired to an internal cable. Plug your own power bank into the cable inside the bag, and the external port lets you plug in your phone without opening the main compartment. The bag itself is not a battery.

Will my laptop fit?
The padded compartment is sized for standard laptops up to common 15 to 17 inch models. Measure your device before traveling.

Is it good for both work and travel?
Yes. It is designed as a hybrid commute and travel bag. Pair it with compression packing cubes for longer trips.