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USD only · Ships from Florida, USA

Underseat Structured, exterior

A-08Underseat Bags

Underseat Structured

Stands open on the floor while you pack it

A rigid base panel and framed sides. It will not slump, which makes it easy to load and unload — and means it will not give up any centimetres under pressure.

USD118

One-time purchase. No subscription, no membership, no recurring charge.
All prices and transactions are in US Dollars (USD).

Free standard US shipping over USD 69. Unused and unopened returns accepted for 30 days — see the refund policy.

Capacity
21 L
Empty weight
1120 g
Build
Structured base
Suggested load
12 kg
Line
A · Underseat

Gives nothing. The published figure is the figure.

01Measured

2 sets of numbers

Taken off the finished piece, laid flat, with nothing clipped to the outside. Handles and hardware are inside every figure.

  • Empty, unexpanded

    40 × 25 × 21 cm

    402521CENTIMETRES
  • Filled, as listed

    40 × 25 × 21 cm

    402521CENTIMETRES

    Loaded with

    • 2 hooded sweatshirts
    • 4 T-shirts
    • 1 pair of trousers
    • 1 toiletry pouch
    • 1 pair of shoes

A loaded figure is only published when we can also publish what was inside it. Where you do not see a loaded row, it is because that record does not exist yet — not because the bag stays the same size when it is full.

02Check it against your own limit

Put your three numbers in

We subtract them from the figures above and show the gap on every edge. No verdict, no promise — the arithmetic and nothing else.

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 We hold no carrier data of our own, so nothing here can go out of date.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-08 · Underseat Structured

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.

03Specification

What it is made of

Materials
  • 900D recycled polyester shell
  • Polyurethane inner coating
  • Injection-moulded polypropylene base
  • PVC-backed reinforcement panel
Hardware
Sealed nylon coil zippers, zinc-alloy plated pulls and feet
Water-resistant shell

Sprayed with 2 L of water at 20 °C from 30 cm for 3 minutes, closed and held at 45°. Zippers, seams and the base panel are not sealed and are not part of the test.

This is a resistance rating under the stated test, not a waterproof rating.

Suggested load

Rated to 12 kg. Damage caused by carrying more than the rated load is wear, not a fault — see the product safety page.

Details

  • Moulded base with four protective feet
  • Framed opening that stays square when unzipped
  • Fixed shape: dimensions do not reduce under pressure
  • Full-length interior lid organiser

04More from line A

Next to it in the range