Cabin Luggage Built For KLM's 55 x 35 x 25cm Allowance

KLM's cabin bag allowance is 55 x 35 x 25cm, a narrower and deeper shape than the more commonly seen 55 x 40 x 23cm you'll find with other carriers. It's a dimension accepted by a number of other European airlines too, but it's specific enough that not every "standard" cabin case will actually fit it.

Every case in this collection is confirmed at 55 x 35 x 25cm, so you can board through Amsterdam Schiphol or any other KLM departure point without a gate-side resize, and without the sinking feeling of watching your case get measured against the sizer.

Why This Shape Is Different

At 35cm wide rather than 40cm, cases built for this allowance are narrower than most standard cabin luggage, which changes how they pack. You'll generally find slightly more depth to compensate, at 25cm rather than 23cm, so the overall volume isn't drastically smaller, it's just arranged differently. That's worth knowing if you're used to packing a wider, shallower case and are switching to this shape for the first time, since folded clothes sit differently in a narrower, deeper interior.

Rolling clothes rather than folding them flat tends to work particularly well in this shape, since it makes better use of the added depth without needing the full width a 40cm-wide case would offer. It's a small packing adjustment, but one worth making if you're new to this specific dimension rather than assuming your usual folding method will pack just as efficiently.

It's also worth checking your outbound and return flights separately if you're booking a multi-city trip through Amsterdam. KLM's own allowance stays consistent at 55 x 35 x 25cm across its network, but a codeshare or partner airline further along the same itinerary may not use the identical figure, so a quick check before departure avoids any confusion at a connecting gate.

The team's general advice for this size, as with any cabin allowance, is to confirm the figure with your airline directly rather than relying on memory from a previous trip, since allowances do get revised from time to time and it's a detail worth five minutes of checking before you travel.

Whichever brand you choose from this collection, buying a case genuinely built to 55 x 35 x 25cm rather than a generic cabin size gives you one less thing to worry about on travel day, which is really the whole point of checking the allowance in the first place.

If you're ever unsure whether a case you already own meets this allowance, it's worth measuring it yourself with the wheels and handles extended rather than relying on the size printed on an old receipt or product label.

A tape measure and two minutes is all it takes, and it's a far more reliable way to confirm compliance than trusting a size description that may have been written years before KLM last reviewed its own allowance.

Premium Brands Confirmed At This Size

Samsonite cabin luggage, Tumi cabin luggage, and Bric's cabin luggage all feature here, alongside Joules for a softer-sided, more casual option and Peak Design's technically focused Roller Pro. Briggs & Riley also appears through its ZDX range, including the Underseat Holdall and Convertible Backpack Duffle for travellers who'd rather not use a hard-shell spinner at all, and Bric's Zipped Pilot Suitcase from the X Travel range gives a more compact, two-wheel alternative to the usual four-wheel spinner format.

Soft-Sided Or Hard-Shell For This Allowance?

A few things worth weighing up:

• Hard-shell spinners from Bric's and Samsonite offer the most structured protection and glide well on smooth airport floors.
• Soft-sided duffles like the Joules Packaway Duffle or Bric's Weekender Duffle flex into tighter overhead lockers when space is limited.
• Backpack-style options such as the Briggs & Riley Convertible Backpack Duffle suit travellers who want their hands free through the terminal.
• Two-wheel cases like the Bric's Zipped Pilot Suitcase can be steadier than a four-wheel spinner on cobbled European city streets.

Flying KLM Long-Haul?

The allowance stays the same whether you're on a short European hop or a long-haul KLM route through Schiphol, so a case confirmed here should work across your whole itinerary if KLM is your primary carrier. If you're connecting onto a different airline for part of your trip, it's worth checking their limits too, since not every carrier uses the same 55 x 35 x 25cm figure. See our KLM cabin luggage collection for KLM-specific guidance, or browse the full cabin luggage range to compare every size we stock.

Frequently Asked Questions

Is 55 x 35 x 25cm the same as standard cabin luggage?

It's a genuine variation rather than the same thing under a different name. It's narrower and deeper than the common 55 x 40 x 23cm allowance, so cases built for it are shaped specifically to fit.

Which other airlines accept this size?

KLM is the primary carrier this collection is built around, and the same dimension is accepted by a number of other European airlines, though it's worth confirming with your specific carrier before you fly.

Are there soft-sided options in this collection, or only hard-shell?

Both. Alongside hard-shell spinners from Bric's and Samsonite, this collection includes soft-sided duffles from Joules and Bric's, plus the Briggs & Riley Convertible Backpack Duffle for a backpack-style option.