A week of shirts in one cabin bag is doable. I have done it to Amsterdam and Munich more times than I can count, and the limiting factor is almost never the folding. It is the 7kg scale at the bag drop and the 20cm depth of the case. The EU hand luggage rules are changing that picture, but not as quickly or as completely as the headlines suggest, so this piece does two jobs: what is actually agreed versus what is still a proposal, then the volume maths that tells you whether five to seven presentable shirts fit in the bag you already own.
Short version of the verdict: seven shirts fit comfortably in a 55 x 40 x 20cm overhead case, they fit in a 40 x 30 x 20cm under-seat bag only if you are ruthless about shoes, and they do not fit in a 40 x 30 x 15cm personal item alongside a laptop. The maths is further down.
What the EU hand luggage rules actually cover, and what is still proposed
Two different things keep getting reported as one.
The settled part is the small free personal item. EU-level positions on the revision of air passenger rights set a standard free bag that fits under the seat in front, measured at 40 x 30 x 15cm. That is the piece most airlines were already close to, and several moved to match or beat it during 2025.
The unsettled part is the bigger one. The European Parliament’s position also pushes for a free cabin bag measured by total dimensions, width plus height plus depth adding up to 100cm, with a weight allowance of around 7kg. The Council and Parliament still have to agree a final text, and application is expected from 2027 rather than from the day you read a news story about it. Check the current position before you rely on it.
There is older law underneath all this. In September 2014 the Court of Justice of the European Union ruled in case C-487/12 (Vueling Airlines) that hand baggage of reasonable size and weight is a necessary aspect of carrying a passenger, and cannot carry a separate price supplement. Airlines responded by defining “reasonable”very tightly indeed. That is why the new rules are trying to put a number on it.
For a UK traveller, the reach of all this depends on the flight, not on your passport. EU rules bite on flights departing from EU airports, and on EU-based carriers flying into the EU. A flight from Manchester to Málaga on a UK airline sits outside that framework on the way out, even though the return leg may not. Same route, two different rulebooks. Pack to the stricter one.
And note what the rules do not touch: liquids screening, the gate sizer, priority boarding products, airline weight caps. None of that goes away.
The limits that apply on the day you fly
Your airline’s published allowance is the only number that matters at the gate. Here is roughly where the main UK-to-Europe carriers sit, with the usual warning that these change and you should check the booking page before you pack.
- Ryanair: free under-seat bag, moved to 40 x 30 x 20cm during 2025. Anything bigger is a paid priority or 10kg bag.
- easyJet: free under-seat bag at 45 x 36 x 20cm, which is the most generous free allowance of the budget group. A larger overhead bag needs Plus or an upfront seat.
- Wizz Air: free personal item at 40 x 30 x 20cm, with a stated weight limit. Their larger trolley bag is a paid add-on.
- Jet2: a proper 10kg cabin bag at 56 x 45 x 25cm included, plus a small personal item. For shirts, this is the easy one.
- British Airways: a cabin bag at 56 x 45 x 25cm plus a personal item at 40 x 30 x 15cm, with generous weight limits, though you must lift the bag into the locker unaided.
Measure the way a sizer measures. The frame does not care that your bag is 20cm when empty and compressed. Handles, wheels, feet and that bulging front pocket all count. A soft 40 x 30 x 20cm bag with a water bottle and a jumper stuffed in the front is a 24cm bag, and it will jam. A hard-shell case of identical stated dimensions drops straight through. If you fly Ryanair regularly, buy a bag that is a centimetre or two under the stated size and stop fighting it.
Weight is the trap people miss. A 7kg or 10kg cap bites long before volume does once a laptop and shoes are in. Shirts are light, around 200 to 250g each for cotton, so seven of them is under 2kg. The weight is in everything else. Hang a hook scale on the handle at home before you leave. A cheap luggage scale has saved me more money than any packing cube I own, and I go into the free-allowance detail further in my guide to hand luggage rules on UK flights.
Does a week of shirts fit? The volume maths
Nobody publishes this, so here it is in litres.
- 40 x 30 x 15cm (the EU personal item) is about 18 litres.
- 40 x 30 x 20cm (the typical free under-seat bag) is about 24 litres.
- 55 x 40 x 20cm (the standard overhead cabin case) is about 44 litres.
Now the shirt. Folded properly, a men’s shirt occupies roughly 30 x 22cm of footprint and about 2cm of depth. Seven of them is a block about 14cm tall. Put that in a 20cm-deep case and you have used 70 per cent of your depth before a washbag, a pair of shoes or a laptop goes anywhere near the bag.
In the 18-litre personal item, the shirt stack is 14cm of a 15cm depth. That is the whole bag. You can carry a week of shirts in it or you can carry everything else, not both.
In a 24-litre bag, seven shirts plus underwear, socks, a packed pair of trousers and a flat washbag works if you wear your shoes and jacket on board and carry the laptop in a separate sleeve where the airline allows a second item. It is tight and it is not fun at security.
In a 44-litre case, a Monday to Friday week is straightforward: five fresh shirts plus two spares, one pair of trousers worn and one packed, one spare pair of shoes, laptop, washbag. The shirts are the easy part. Run the weight first.
Rough weights for that Amsterdam or Munich week, against a 7kg cap:
- Seven cotton shirts: about 1.6kg
- Packed trousers: about 400g
- Underwear and socks for five days: about 500g
- Spare shoes: 800g to 1kg
- Laptop and charger: 1.5 to 2kg
- Washbag with 100ml bottles: 600 to 800g
- The empty bag itself: 1 to 2.5kg depending on hard or soft
Add that up and a hard-shell case puts you at or over 7kg before you have packed a book. That is why the cheap, light, soft bag is usually the better buy, and why the shoes are the first thing to go.
The seven-shirt stack that survives the flight
Button each shirt fully. Collar button, cuffs, the lot. An open collar folds over on itself and arrives with a crease across the point that no amount of steam will fix on a Tuesday morning.
Fold along the creases the shirt already has. A shop-folded shirt has factory creases down the back and at the sleeves, and the fabric remembers them. Inventing a new fold line just gives you two sets of creases instead of one.
Put something slippery between each layer. Tissue paper works, thin dry-cleaning polythene works better and weighs nothing. The point is not padding. It is that shirt cotton grips shirt cotton, and where two gripping layers are pushed sideways they buckle into a sharp crease instead of sliding over each other.
Build the whole thing as one block and put it in flat, last, on top. Never down the side of the case. A shirt stack wedged vertically beside a shoe is a stack that bends for two and a half hours.
Then pack dense underneath. Socks and underwear into every gap around the shoes, so nothing can move. I have also used a rigid shirt carrier for single-shirt trips, which is a different trade-off: it protects one shirt beautifully and eats a chunk of your case.
Why shirts crease in a cabin bag, and what actually stops it
Four causes, and only one of them is the fold.
Pressure. Something heavy sitting on cotton for three hours sets a line in it. Hence the stack goes on top.
Movement. This surprises people. A half-empty bag creases clothes more than a full one, because the contents slide and tumble for the whole journey and fold the fabric in random directions over and over. A firmly packed bag immobilises everything. If your case rattles when you shake it, you have not finished packing.
Moisture. Cotton creases when hydrogen bonds reform in a new position, and damp fabric sets faster and harder. A slightly damp shirt packed on Sunday night arrives wrecked. A toiletry bottle that weeps does the same to whatever is next to it.
Fabric. Non-iron cotton and a decent twill recover well, Oxford cloth is forgiving, poplin is middling. Linen and lightweight viscose do not recover at all. Be honest with yourself about the gaps: if you are taking linen on a five-day cabin-bag trip, you are taking an iron too.
On arrival, hang the whole stack within five minutes of getting into the room. Bathroom steam from a hot shower fixes most of what is left, but it needs 30 to 40 minutes of hanging to dry afterwards. Wearing a steamed shirt straight away just sets the creases somewhere new.
Liquids, laptop and the rest of the week’s kit
Assume 100ml containers in a one-litre transparent bag, both ways. The variable bit is the airport, not the airline. Scanner technology differs across UK and European airports, so an airport that lets you leave liquids and laptops in your bag on the outbound leg may hand you a tray on the way home, and relaxed limits that were trialled have been pulled back before. Check the UK government’s hand luggage restrictions guidance and the departure airport’s own page rather than assuming.
Shoes are the biggest single space cost in any cabin bag. One spare pair, maximum, and wear the bulkier pair on board. Stuff socks inside them.
Keep the laptop in a flat sleeve against the back panel, not in the main compartment. It comes out at security without disturbing the shirt stack, which is half the reason the stack survives.
When a cabin bag is the wrong call
Some trips are not cabin-bag trips, and pretending otherwise costs more than the bag fee.
A suit is the obvious one. A jacket folded into 20cm of depth arrives with shoulder creases, and hotel pressing is charged per garment, so a couple of items can undo the saving immediately. Wear the jacket on board or check the bag.
Ten days or more is another. Seven shirts is roughly the ceiling for a 44-litre case once the rest of the week is in it, so beyond that you are into mid-trip laundry, which eats an evening, or a hold bag.
Gate-checking is the risk people forget. On a full flight the last 20 passengers to board can have their cabin bags taken for the hold, free but out of your hands. Keep passport, phone, charger, medication and one clean shirt on your person. Family trips make this worse rather than better; on our camping trip to Union Lido in Italy the hold bag was never in question.
Finally, the return leg. Worn shirts take up noticeably more room than freshly folded ones, because nobody folds a dirty shirt properly in a hotel room at 6am. Leave 10 per cent of the case empty on the way out. Pack to the brim and you will be sitting on it on Friday.
Frequently Asked Questions
When do the new EU hand luggage rules come into force?
Not yet. Positions have been set out at EU level on a standard free personal item and a larger free cabin bag, but the final text still has to be agreed between the Parliament and the Council, and application is expected from 2027. Until then your airline’s published allowance is what applies at the gate. Check the current status before you book if it matters to your trip.
Do the EU hand luggage rules apply to flights leaving UK airports?
Not automatically. EU passenger rules apply to departures from EU airports and to EU carriers flying into the EU, so a UK airline flying you out of Gatwick sits outside them, even if your return from Barcelona does not. The same route can run on two different rulebooks. Pack to whichever allowance is smaller.
How many shirts realistically fit in a 40 x 30 x 20cm cabin bag?
Seven folded shirts form a block around 14cm deep, which uses most of a 20cm bag. Seven still works alongside underwear, a packed pair of trousers and a flat washbag if you wear your shoes and jacket on board and carry the laptop separately. With a laptop and spare shoes in the bag too, three or four is more honest.
Will my cabin bag be weighed as well as measured at the gate?
It can be. Budget airlines weigh more often at bag drop than at the gate, but 7kg and 10kg caps are enforced when flights are full or crews are running checks. Weigh the packed bag at home on a hook scale, since shoes, a laptop and the case itself usually get you to the limit before volume does.
What is the best way to stop shirts creasing in hand luggage?
Button them fully, fold along the existing factory creases, slide thin tissue or dry-cleaning polythene between each one, and put the whole stack in flat and last so nothing presses on it. Then fill every remaining gap with socks and underwear, because a loose bag lets contents move and that movement causes more creasing than the fold ever does.
