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USD only · Ships from Florida, USA

Cabinway
Bagbag

Cabin carry39 pieces

Measured for the
space under
the seat.

Not for a marketing page. Every bag is published with the numbers we took off it — empty, expanded and loaded — so you can do the subtraction yourself.

Browse all 39Open the Size Ledger

Measured, not promised. We compare numbers, not policies. Airlines change limits and measure differently at the gate.

A soft cabin bag pushed into the floor space beneath an aircraft seat

The floor space in front of your own seat

Shown: the slot between the seat legs, one row back. Each space has its own piece, and the figures on the outline are that bag’s own — measured empty, laid flat, handles included.

A-02Underseat 1840 × 25 × 20 cm
  • 39 pieces, every one measured empty and flat
  • Three dimension sets per bag where the data exists
  • Loaded figures always list what was inside
  • No carrier data stored anywhere on this site
  • Handles and hardware counted in every figure
  • Nothing on sale here carries a battery

01The method

One bag,
three sets of numbers

A single dimension line tells you almost nothing. A bag that measures well in a catalogue photograph can measure differently once it is expanded, and differently again once it is full. So we publish all three, and we say what was inside for the third.

How we measureSee Underseat Expand

  • 01 / Empty, unexpanded

    402518CENTIMETRES

    40 × 25 × 18 cm

    Measured with the bag laid flat, empty, nothing clipped to the outside.

  • 02 / Empty, expanded

    402524CENTIMETRES

    40 × 25 × 24 cm

    Measured with the bag laid flat, empty, nothing clipped to the outside.

  • 03 / Filled, as listed

    402625CENTIMETRES

    40 × 26 × 25 cm

    Inside: 2 hooded sweatshirts · 4 T-shirts · 2 pairs of trousers · 1 toiletry pouch · 1 pair of shoes

02The tool

We compare numbers. That is the whole product.

Type in the three figures your carrier gives you. We subtract them from ours and show the difference on every edge. No stored rulebook, no verdict, no promise — just the arithmetic, with the smallest gap called out.

Everyone else in this category asks you to trust a badge. A badge cannot know which aircraft you are on, which desk you check in at, or whether the frame at the gate is the one from last season. Three numbers can be checked. A badge cannot.

Size Ledger

Enter the limit you have been given

Take the three numbers your carrier publishes for your ticket and type them in. We hold no carrier data of our own, so nothing here can go out of date.

Published limit

We compare numbers, not policies. Airlines change limits and measure differently at the gate.

Arithmetic result

A-01 · Underseat 14

Waiting for three numbers

Nothing is compared until you type a limit. We do not guess, and we do not store a list of anyone else’s rules.

03Six lines

Sorted by the space it has to live in

Not by season, not by colour. Each line exists because one particular space runs out of room in a different direction.

04In the slot

The only test that counts happens on the floor

A bag that measures well and still will not go in has failed. Every model in Line A is loaded and pushed into a fixed opening before its figures are signed off.

See the underseat line

05Build

How much a bag gives back

Softness is a measurement too. A fully soft bag can lose four centimetres against a fixed opening; a structured one loses nothing at all. Both facts are printed on every product page.

  • Fully soft

    gives up to 4 cm

    No frame anywhere. Pushed against a fixed opening it will lose up to four centimetres, and it will not hold its shape while you load it.

  • Semi-structured

    gives up to 2 cm

    Stiffened panels in the sides. It stands up on its own and still gives roughly two centimetres under steady pressure.

  • Structured base

    gives up to 0 cm

    A moulded base and framed opening. Easy to pack, and it gives nothing back. The published figure is the figure.

The bounding box

Everything that sticks out is part of the number

LENGTHHEIGHTHandlesare insidethe figureBOUNDING BOX, LAID FLAT, EMPTY

Handles, feet, buckles and any hardware are measured inside the outline. We do not publish a body-only figure and leave you to add the rest at the gate.

Read the full method

06Selected

Four that answer four different problems

All 39 pieces
  • Underseat Expand — Two heights, for outbound and for the way homeA-04

    Underseat

    Underseat Expand

    Two heights, for outbound and for the way home

    Empty, unexpanded
    40 × 25 × 18 cm
    Capacity
    17 L
    Build
    Fully soft
    USD72
  • Softbag Compress — Take 4 cm back off the widest sideB-03

    Overhead

    Softbag Compress

    Take 4 cm back off the widest side

    Empty, unexpanded
    50 × 34 × 20 cm
    Capacity
    32 L
    Build
    Fully soft
    USD98
  • Personal Slim Pack — Built for when thickness is the number that failsC-05

    Personal

    Personal Slim Pack

    Built for when thickness is the number that fails

    Empty, unexpanded
    38 × 25 × 10 cm
    Capacity
    11 L
    Build
    Semi-structured
    USD68
  • Cube Compress 3 — Takes the air back outD-02

    Organizers

    Cube Compress 3

    Takes the air back out

    Empty, unexpanded
    35 × 25 × 12 cm
    Capacity
    16 L
    Build
    Fully soft
    USD38

Group orders

Buying the same bag for a whole team

Tell us the ceiling you have to work to, how many people are travelling and whether anyone needs a device sleeve. We will come back with the pieces whose figures fit, and the ones that do not.

Start a group enquiry

Notes, occasionally

When a figure changes, we send the new one

A short email when a model is re-measured, revised or added. No membership, no account, no charge — this is a mailing list and nothing more.

Before you order

We compare numbers, not policies. Airlines change limits and measure differently at the gate.

Read the sizing notice