Walking through the airport, I soon spotted my arch nemesis: Ryanair’s ‘cage of doom’ bag sizer.
Many a traveller has fallen victim to its tight measurements in the past, leaving them with no option but to pay the extortionate on-the-spot fee of £46-£60 – just so they can indeed have clean underwear on their next adventure.
Today, however, I vowed that would not be me – thanks to an impressive Primark 8-Wheel Hard Shell Underseat Suitcase, for just £25.
As someone who loves to travel but refuses to pay a penny more on a trip than for her cheap airfare, I am always on the lookout for an underseat bag that’s going to help make that a reality.
The problem is, bags that promise to fit the baggage allowance requirements for the likes of Ryanair, WizzAir and EasyJet can often get quite bulky just due to the volume of items people try to cram into such a small space.
All about the bag
So, when I stumbled upon this gem during a routine trip to Primark – ironically while scouting for a different bag I’d heard about – I was really buzzing.

It was the words ‘removable wheels’ printed on the tag that caught my eye and brought me to my knees with glee.
That may be a slight exaggeration, but I did find myself bounding over to the shelves, eyes practically bulging in anticipation and excitement. ‘Could this case be the one I’d been searching for for all these years?!’ I thought.
Now, admittedly, this wasn’t my first foray into Primark’s ‘viral’ luggage. Last year I picked up its similar-sized soft black bag with two wheels and a hidden handle and was pleasantly surprised at its practicality.
While the measurements were a couple of cm over the allowance, it passed the dreaded airport test, and it even survived a seven day trip to Estonia.
Yet it wasn’t the material of this newest find that gave me pause, rather it was the case itself.
See, I’ve never understood the desire to take a suitcase as part of your small cabin baggage allowance before – when you’re only given 40x20x25cm, in my opinion, the wheels and handle eat up valuable packing space, why not opt for something else?
However, if you were to take the wheels out of the equation, that suddenly makes a lot more sense. Plus, hard sides could also prevent overpacking, which would satisfy many an anxious traveller.
So, suitcase trundling swiftly behind me, I left Primark £25 poorer and ready to put this bag to the ultimate Ryanair test.
What Chelsea managed to pack in the bag
At home, I was impressed to find that the suitcase came in at the stated measurements and, when it came to packing, I was able to squeeze in enough clothes, underwear and swimwear for a three day trip.
I even got a spare pair of shoes, a toiletry bag, an electronics bag, a travel adaptor and a phone tripod inside, too.
But now it was packed to the brim, would it actually fit in the baggage sizer?
Putting the suitcase to the test
En route to the airport, I was happy to find that the suitcase handled well, especially on smooth surfaces. It required a bit more force on hills and cobblestones, but when the wheels hit vinyl floors, I felt close to pure joy.
Then it was time for the moment of truth.
Lifting my case into the sizer, at first it appeared there was no chance it was going to fit. Luckily, I had a singular trick up my sleeve…
I pressed the release buttons on the sides of each wheel and in seconds, had all four of them in a little bag, which then got stuffed inside my pocket. Then, holding my breath, I once again lowered the now wheel-less suitcase into the sizer.
One deliberate prod later and the case fell neatly into place – and the Primark case fit like a glove.
‘Bingo!’ called a woman watching on from the queue behind me. She was right, I did in fact feel like a winner.
It seemed Primark that had thought of everything, even down to the small black bag designed for storing the wheels.
Budget travel ideas
Still, watching it fall so neatly into place was a great moment and one I’m sure all money-savvy travellers would enjoy too.
Chelsea’s suitcase hacks for seamless travel
My only lingering concern is that Ryanair’s baggage policy specifically states that a ‘small bag’ is a ‘small personal bag, such as a handbag, laptop bag or backpack’. It might not explicitly prohibit a suitcase (even one without wheels) but get the wrong member of gate staff and you could have an issue.
Therefore, my advice is to remove the wheels before joining the queue and either store them inside the case or in a pocket so as to avoid attracting more attention than is necessary.
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Hopefully this reduces your chance of being stopped and keeps the boarding process smooth for everyone.
The overall verdict
Overall, this new Primark suitcase does indeed get my seal of approval. It’s a great quality find for the price and it’ll certainly turn a few heads at the gate.
In fact, I can’t wait to take it on my next Ryanair flight with me and I think I’ll actually be disappointed if they don’t ask me to measure it. Cage of doom, come at me!
This article was originally published March 30, 2025
Do you have a story you’d like to share? Get in touch by emailing jess.austin@metro.co.uk.
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