Pack a full trip in one bag
OneBag Kit is a practical guide brand for carry-on and one-bag travel. We publish clear, citable answers on packing cubes, backpack styles, and trip lists — so you can leave the second bag at home.
Airline cabin limits vary by carrier and fare. Treat dimensions and weight here as typical ranges, then confirm with your airline before you fly.
Start with a guide
Carry-on one-bag packing
The pillar: what “one bag” means, a simple system, and how to stay under cabin limits.
How many packing cubes for 40L?
A realistic cube count and size mix for a ~40-liter travel backpack.
Compression vs regular cubes
When zip compression helps — and when a regular cube is the better choice.
Europe packing list: 14 days
A sample carry-on list for two weeks of mixed weather and walkable cities.
Clamshell vs top-loader
Which backpack opening style suits hotels, hostels, and airport security.
About & disclaimer
Who OneBag Kit is for, and important limits of this guidance.
What the kit is
Today OneBag Kit is a set of free answer pages focused on carry-on packing. A printable checklist may follow later — see About and the soft waitlist below. There is no checkout on this site.