How to Choose a Carry-On Without Falling for Marketing

Eleven things that actually matter, ranked, and the four things bag brands love to talk about that mostly do not.

Carry-on luggage is the rare consumer category where the marketing has almost nothing to do with the buying decision. Brands sell the suitcase as a lifestyle object: aluminum, leather details, a color named "alpine fog." You will use the suitcase for a different set of things: getting it down a 747's center aisle, fitting it under a regional jet's overhead, surviving a checked bag baggage handler's afternoon, and rolling it through cobblestones in three European cities a year.

Below is what actually matters when you buy a carry-on, ranked by how often each thing comes up on real trips. Then, the four things you can mostly ignore. Then a small section on how to read a brand's spec sheet without being deceived.

The eleven things that matter, ranked

1. Outer dimensions, including the wheels. Almost every "carry-on" sold in the U.S. is sized to fit the major U.S. carriers' generous overhead specs. International airlines, especially European budget carriers, have stricter limits. If you fly Ryanair, easyJet, or Wizz Air, your "international carry-on" is probably about 22 x 14 x 9 inches; if you fly Delta or United, you have more room but those bags will not fit on a Lufthansa A319 overhead. Buy for the smallest plane you fly, not the largest.

2. Wheel quality. This is the first thing to die on a cheap carry-on, and a dead wheel is the difference between a useful bag and a piece of cargo. Look for double-spinner wheels with replaceable cores. Travelpro and Briggs & Riley publish replacement wheel parts; Away has gotten better about this. If a brand does not sell replacement wheels, plan on the bag's life being three to five years.

3. Telescoping handle stability. Extend the handle and shake the bag with one hand. If the handle wobbles laterally, the locking mechanism is loose. After 200 trips that bag will wobble like a shopping cart. The good ones lock with no play; the cheap ones have play out of the box.

4. Empty weight. A "heavyweight aluminum" carry-on can weigh 11 pounds before you put anything in. A good polycarbonate softside can come in at 5.5 to 6.5 pounds. On a low-cost carrier with a 7 kilogram (15.4 pound) cabin limit, that 5-pound difference is most of your wardrobe.

5. Interior shape. Square, deep, no curve where the wheel housings intrude into the main compartment. Some brands cleverly put compression panels in shapes that look like bonus storage and turn out to be useless wedges. Look for a clean rectangle.

6. Closure type. Two zippered halves that close like a book is the default; they pack flat and use space efficiently. A clamshell hard-shell is fine. A top-loader (Briggs & Riley's "expanded" line) is great for business travel and brutal for vacation packing. Pick based on how you actually pack, not the showroom photo.

7. Compression mechanism. A dedicated compression panel inside one half of the bag is one of the most useful features in modern luggage. It costs 0.4 to 0.6 pounds of weight, takes up no real space, and adds about 15% capacity. Worth it on any bag you will use for a five-day trip or longer.

8. Front pocket access (the "laptop pocket"). If you fly with a laptop, the bag with a laptop pocket on the front means you do not have to open the main compartment at every TSA checkpoint. This single feature has saved us a cumulative two hours over the last year.

9. TSA-approved combination lock built into the zipper. Saves you carrying a separate padlock. Make sure the dial is the kind you can change the combination on; the fixed-combination ones are useless after a year.

10. Warranty terms. Read them. Briggs & Riley's lifetime warranty is the gold standard ("if you can use it, we will fix it, no matter the cause"). Tumi's warranty covers manufacturing defects only. Away's is in between. The cheap brands do not have a warranty worth the PDF it is printed on.

11. Color. This sounds like #11 because we ranked it last, but here is the practical version: pick a color you can spot at the distance of a baggage carousel through 100 other bags. Dark navy, dark green, oxblood, mustard, or a real pattern. Avoid black, charcoal, and basic gray, which is what 60% of the carousel is. Beige and white look great in the showroom and look catastrophic by trip three.

The four things you can mostly ignore

The material cool factor. Aluminum is heavier than polycarbonate, dents on impact, and shows scratches; polycarbonate is lighter, cracks but does not dent, and stays uniform. Aluminum looks great in a hotel lobby. Polycarbonate is what experienced travelers actually buy. Both work fine; do not pay a premium for "aerospace-grade aluminum."

Battery banks and USB ports. The TSA started restricting integrated batteries in 2018; some airlines (Delta, United, JAL) require the battery to be removable. The integrated USB you saw advertised four years ago is largely obsolete. A separate battery in your laptop bag does the same job with no compliance question.

Hand-stitched leather details. Decorative; they wear faster than the rest of the bag and are the first thing that looks shabby.

The "smart" features. GPS tracking is now strapped on with an AirTag in a pocket; you do not need a $600 bag for it. App integration, remote locking, etc. tend to die with the company that sold them.

How to read a spec sheet

A few tactics:

Add 1 to 1.5 inches to the listed dimensions. Brands measure the bag empty and unloaded; loaded, the wheels, handles, and bulging compress add up. A "21.5 inch carry-on" is usually 22.5 to 23 inches with wheels and a stuffed front pocket. This matters at the boarding gate.

Compare empty weight against capacity. A good ratio is around 1 pound of bag for every 7 to 9 liters of capacity. Lower than that means a flimsy bag; much higher means an unnecessarily heavy one.

Check the warranty page, not the PR page. "Limited lifetime warranty" usually means manufacturing defects only. "Unconditional lifetime warranty" or wording like "however caused" is the gold standard.

Look at the wheel specs. Wheel diameter and bearing type are listed somewhere on the product page if the brand is honest. 50mm+ double-spinners with sealed bearings are good. Anything smaller or unspecified is a corner cut.

What we are using right now

We will not name a single winner because the right bag depends on what you fly. For domestic U.S. flights and easy international, we have used a Travelpro Maxlite 5 (cheap, very light, simple) and a Briggs & Riley Baseline (expensive, lifetime warranty, the bag we reach for on a five-year-old daily-carry test). For trips that include European budget carriers, we have moved to a 40 x 20 x 25 cm soft-side from Cabin Zero, which is small enough for Ryanair and big enough for four days.

Whatever you buy, take it to the airport once before a real trip. Stand it in the carry-on size cage at any gate. Roll it across the airport bathroom floor. If the wheels feel wrong on tile, they will feel worse on cobblestones.

The bottom line

A good carry-on is a tool, not a piece of luggage. Buy on dimensions, wheels, handle, weight, and warranty. Pay for the bag that survives 200 trips, not the one that photographs well in a hotel lobby. Aluminum looks great in the showroom. Polycarbonate is the pro choice. And whatever color you pick, if it disappears on a baggage carousel, you bought the wrong color.