KABINBAG expandable travel backpack standing in an airport terminal

Expand it to pack. Compress it to fly.

Pack 5 days. Pay zero fees.

Pack it, vacuum it flat, walk on. Compression saves up to 50% of the space — enough for five days in a bag that goes under the seat.

Shop the KABINBAG Original

★★★★★ Free UK delivery over £50 · 30-day returns · £39 travel pump included free

4.95 out of 5 from 73 verified reviews
Free UK delivery On orders over £50, tracked end to end
£83 of extras free Pump, toiletry bag and £20 gift card
30-day returns Change your mind and send it back
UK support A real reply within one working day

Fits the free cabin allowance on

Ryanair
easyJet
Jet2
TUI
British Airways
Wizz Air
Virgin Atlantic

Airline names and logos are the trademarks of their respective owners. KABINBAG is an independent brand and is not affiliated with, endorsed by, or partnered with any airline. Allowances shown are the airlines' own published figures — always check before you fly.

The range

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HOW IT WORKS

Three steps. Twenty seconds.

Three steps. Twenty seconds.
1.01

Pack

Unzip the 5cm expansion layer and load it up. Jumpers, jeans, the lot.

2.02

Compress

Attach the included pump to the one-way valve. The contents collapse. Twenty seconds.

3.03

Walk on

Straight past the bag drop and onto the plane.

Why KABINBAG

✈

Cabin sized

Compressed to 40 × 30 × 15 cm — inside the free under-seat allowance on Ryanair and Wizz Air with 5cm to spare.

▣

Two bags in one

A 20-litre daypack Monday morning. A 30-litre carry-on on Friday night.

⚿

Anti-theft lock

Combination lock and a hidden rear pocket for your passport.

▭

Padded laptop sleeve

Its own side access, so it works as a commute bag the other 50 weeks of the year.

Questions

Questions, answered

Will it actually fit the Ryanair sizer?

Yes. Compressed, it measures 40 × 30 × 15 cm. Ryanair's free under-seat allowance is 40 × 30 × 20 cm, so it drops in with 5cm to spare.

Compress it before you leave for the airport, not at the gate. A soft-sided bag that has not been vacuumed down will bulge past the frame.

Does compressing it make the bag lighter?

No, and we would rather say so plainly. Vacuum compression removes air, not weight. Your clothes weigh the same compressed as they do loose.

What it changes is the shape, and shape is what the sizer measures. Most airlines cap cabin bags at around 10kg and some do weigh them, so pack accordingly.

How long does the compression hold?

The one-way valve holds a full seal for a normal travel day. Long-haul, or if the bag takes a knock, you may notice it relax slightly. Ten seconds with the pump puts it back.

Do I need to buy the pump separately?

No. A rechargeable travel pump is included free with every KABINBAG Original — a £39 product in its own right. Any standard household vacuum works on the same valve too.

Will my clothes come out creased?

Some, yes. Compression presses fabric, so cotton shirts and linen will need hanging up when you arrive. Knitwear, denim and technical fabrics come out fine.

How much is delivery, and how long does it take?

Free on UK orders over £50, which includes every KABINBAG Original. Under £50 it is £4.99 standard or £6.99 express.

Orders are despatched within 1 to 3 working days, and delivery is a further 3 to 5 working days from despatch, tracked — so most orders arrive within 4 to 8 working days of being placed. Full detail on Shipping Policy.

What if I change my mind?

You have 30 days from delivery to return it for a full refund. The bag needs to come back unused and in its original packaging, and return postage is paid by you.

If anything arrives faulty or not as described, that is on us — we cover the return and refund you in full. None of this affects your statutory rights under the Consumer Contracts Regulations, which give you 14 days as a minimum.