Shoppers are voicing their frustration due to a modification that led to items being listed as the wrong size.
The second-hand shopping app has altered its size classifications for women's and children's garments failing to inform all users about the change.
Numerous buyers and vendors are posting online stating that platform listings now display a different size category than originally posted because of the remapping.
The company said the revised method more closely matches other platforms.
It has advised users to review their products and update the measurements by hand if necessary, causing user dissatisfaction.
Earlier, the measurements included a single numeric size and a letter, like S/8 or M/10.
The updated approach includes a letter with a size spectrum for example S/UK 8-10.
For certain items, the size labels have been reassigned - such as a large size used to be a 12 but now shows as UK 16-18.
A fashion influencer, who creates plus-size fashion videos, explained the modification "makes transactions more difficult".
"Rarely do manufacturers list XL as sizes 20-22," as the platform currently indicates.
Another user, located in Scotland, said garments she listed on Vinted with size 14 labels were showing in the marketplace as measurements 20-22.
"Should someone sized 20-22 purchase these they're going to be very disappointed," she stated.
A different user, from Derby, said she had been left angered due to the update requiring manual adjustment the measurements for "each individual item".
"For me this is particularly frustrating, because of my ongoing medical condition and platform income has been essential following partial earnings loss," she stated.
The service features exceeding 100 million shoppers, including 18 million in the UK.
It has become a favored option compared to resale services such as eBay and Depop.
This is not the initial instance where an unanticipated change on the platform has faced criticism: previously, Vinted reversed a change to its shipping options due to shopper criticism.
Marketing strategist with over a decade of experience in digital branding and business development.
Steven Collins
| 11 Sep 2026
Steven Collins
| 11 Sep 2026
Steven Collins
| 11 Sep 2026