Vinted Sizes Don't Match the Label in Your Jumper
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Pick the size on the label from Vinted's dropdown, then add one sentence on how it really fits, such as "Labelled M, fits more like a 14." Get the tape measure out for the pieces where fit matters.
You're listing a jumper. The label says M. You pick M from the dropdown. Vinted helpfully shows this as UK 10.
Except the jumper is a UK 14, because it's a men's medium, or because the brand runs generous, or because "M" has never meant anything consistent in the history of clothing.
You've just described your item wrongly without doing anything wrong, and the person who buys it is going to be annoyed with you.
Where the gap comes from
Vinted's size selector maps letter sizes onto UK numbers, and the mapping it uses is on the small side of what British high street labels actually mean. Medium lands on 10 rather than the 12 or 14 you might expect from the garment in front of you.
Add to that the fact that sizing has never been standardised between brands. A size 12 dress from one shop and a size 12 dress from another can differ by two inches across the chest, and both are correct according to their own labels. Vintage pieces are worse again — clothing sizes have drifted over decades, so an old size 14 is often a modern 10.
None of this is Vinted's fault, particularly. But it means the dropdown produces a number that sits in your listing looking authoritative, and it's frequently wrong about the actual garment.
Why this ends in a complaint
Most "not as described" cases aren't about someone lying. They're about someone opening a parcel and finding an item that doesn't fit, when the listing said it would.
From the buyer's side that feels like being misled, even if you did nothing but pick the option that matched the label. They ordered a 10, they got something that fits like a 14, and the only person they can be cross with is you.
That's an annoying way to lose a sale, and it's an entirely avoidable one — because the fix takes about eight extra words.
What to actually put in your listing
The advice you'll find everywhere is to measure every garment flat and list the measurements. Chest, length, sleeve, waist, hem.
That advice is correct and almost nobody follows it, because it turns a five-minute listing into a fifteen-minute one and you've got another eleven things on the bed. Advice you won't take isn't useful advice.
Here's the version that works: use the label size, and add a note when it's off.
Pick whatever the garment says from the dropdown. Then, in the description, write the honest sentence about how it actually fits. Something like:
"Labelled M but fits more like a UK 14 — it's a men's fit."
"Runs small, I'd say a true 8 rather than the 10 on the label."
"Vintage sizing, so the 14 on the label is more like a modern 10."
That's it. One line. It costs nothing, it heads off the complaint before it exists, and it does something the measurements can't — it tells the buyer what the item is like, which is what they actually want to know. Most people can't picture 52cm across the chest. Everyone knows what "runs small" means. For the rest of the listing, here's how to write a Vinted description in the same plain style, from the opening line to the flaws.
When to reach for the tape measure
There is a point where measurements earn their keep, and it's narrower than the standard advice implies.
Structured or fitted pieces. A tailored jacket, a fitted dress, jeans. Anything where a couple of centimetres decides whether it works at all.
Anything valuable. If you're selling something worth real money, the extra five minutes is cheap insurance against a return.
Anything where you genuinely can't tell. Some items defy description. Measure them.
A jumper, a t-shirt, a hoodie — these do not need a tape measure. They need "fits like a 14" and a photo where you can see the shape of the thing.
The other half: your photos
Sizing complaints and condition complaints come from the same place — a gap between what someone imagined and what turned up.
Which is why it's worth putting the flaws in the photos from the start, deliberately. The small mark on the hem, the bobbling under the arm, the scuff on the heel. Photograph them, don't hide them, and mention them.
This feels counterproductive when you're trying to sell something. It isn't. A buyer who can see the mark before they buy and buys anyway has priced it in and won't complain about it. A buyer who finds the mark on arrival feels deceived, and now you're in a dispute over something you could have defused with one photo.
The same principle covers both: describe the item as it actually is, in the terms a person actually thinks in. Almost every avoidable dispute on Vinted is a version of this.
The short version
Pick the label size from the dropdown, because arguing with it is a waste of a Tuesday.
Then write the sentence about how it really fits. "Labelled M, fits more like a 14." Eight words, and you've closed the gap between the number in your listing and the thing in the parcel.
Save the tape measure for the pieces where it matters, photograph the flaws on purpose, and you'll have removed most of the reasons anyone was ever going to open a case against you.