Pack & Gear
Carry-on systems, airline size limits, and the kit that earns its place — packing as a constraint problem, not a checklist.
What this pillar covers
- Carry-on systems — how to pack a fixed volume so it still opens, closes, and survives a week.
- Airline size limits — the dimensions that are actually enforced, and how to check yours before the gate does it for you.
- Seasonal packing — layering for a European winter, and why “warm” and “bulky” are not the same thing.
Why packing lists fail
A packing list is infinite; a bag is not. Lists tell you what you could bring, which is the wrong direction — the real constraint is what you can leave behind.
The two numbers that decide everything
Volume and weight — and they fail differently. Most carry-on rejections are a weight problem, not a size problem: a bag that drops cleanly into the sizer can still be over the allowance. Weigh the packed bag before you leave, on a scale, and check the limit against the airline actually operating the flight, not the one you booked with.
How to use this pillar
- Start with the carry-on packing system — the method, not the list.
- Then check the size limits for the airline you are actually flying.
- Then adjust for the season — the winter piece is where most packing plans break.
What this pillar will not do
It will not sell you a specific bag. Gear recommendations age fast, and the right answer depends on your trip rather than on a ranking. What it will do is give you the constraint arithmetic — volume, weight, and airline rules — so you can judge a bag or a packing plan yourself.
Keep going