The backpack for one bag travel.

Travel with one bag. Think less about your gear.

The Expandable Travel Backpack is a 25L carry on backpack that expands to 30L when you need it. It is designed to replace your suitcase on 3 to 10 day trips so you move through airports faster, carry less, and stop managing bags.

Who it is for

• Minimalist travelers taking 3 to 10 day trips
• One bag travelers who want simplicity and freedom
• Founders and operators who value efficiency and low friction when traveling

Why it exists

Most travel gear forces a compromise. Bags are too bulky or too small. Packing systems are split across multiple bags. The result is friction and overpacking.

This backpack is built as a single system. Carry on sized, organised, and big enough for a full trip so you stop thinking about your gear and focus on the trip.

What is one bag travel

One bag travel means carrying everything you need in a single backpack. No suitcase. No second bag. One system that moves with you, faster through airports, lighter on your back, and free from managing multiple bags.

Best for

• 3 to 10 day trips, carry on only
• Mixed travel across planes, trains, cities, and light outdoor use
• Working on the road with a 14 to 16 inch laptop
• One bag for a weekend and a 10 day trip with no need to switch bags

Specs

• Capacity: 25L, expands to 30L
• Weight: 855 g / 1.86 lbs
• Dimensions: 17 inch L × 13 inch W × 7 inch D (expands to 9 inch D), carry on sized for major airlines
• Exterior: 280D nylon PU coated exterior, water resistant
• Interior: 100D nylon
• Padding: 5 mm EVA foam (back panel and straps)
• Laptop sleeve: Padded, fits up to a 16 inch MacBook Pro, false bottom for drop protection
• Main compartment: Suitcase style clamshell opening, internal mesh divider, expandable
• Hidden passport pocket: Discreet back panel access
• Luggage sleeve: Pass through for stacking on roller bags
• Hardware: YKK zippers with laser engraved Hypalon pull tabs, YKK stretch tape horizontal zippers (adds 5 mm elasticity each side), FidLock magnetic sternum strap, Duraflex buckles
• Water bottle pocket: Fits standard bottles

FAQ

Is it carry on compatible?
Yes. At 17 inch × 13 inch × 7 inch (9 inch expanded), it fits the carry on limits of major airlines including American, Delta, United, British Airways, and Lufthansa. Keep it unexpanded for stricter low cost carriers.

What trip length does it handle?
3 to 10 days. With packing cubes, most travelers fit a week of clothes plus tech in the 25L base. The extra 5L adds room for a jacket, layers, or items picked up along the way.

Will my laptop fit?
Yes. The padded sleeve fits up to a 16 inch MacBook Pro. A false bottom keeps the laptop suspended above the base of the bag for drop protection.

How durable is it?
The 280D PU coated nylon exterior is water and abrasion resistant. Zippers are YKK with Hypalon pulls. Buckles are Duraflex. The sternum strap uses FidLock magnetic hardware.

Is it water resistant?
Yes. The coated exterior handles rain and splashes. It is not designed for submersion. For heavy rain, use a rain cover.