Members of the platform have expressed outrage after an update resulted in listings displaying inaccurate size information.
The second-hand shopping app has revised its size classifications for women's and children's clothes without notifying all shoppers about the modification.
Social Media Backlash
Many shoppers and sellers are expressing on platforms saying Vinted listings now show an altered size classification than originally posted as a result of the reclassification.
The company said the revised method more closely matches similar services.
It has advised users to examine their items and manually change the size where appropriate, causing user dissatisfaction.
Size Classification Modifications
Earlier, the measurements included numerical and alphabetical indicators, like S/8 or M/10.
The new system has a letter with a size spectrum for example S/UK 8-10.
In some cases, the measurements have been reclassified - for example a size L used to be a 12 but now shows as UK 16-18.
Shopper Accounts
Frankie Bridger, who makes TikTok content about plus-size fashion, said the change "makes both selling and buying harder".
"Not many brands say XL is a 20-22," which is what Vinted now does.
Stephanie Gallen, based in Glasgow, stated items she posted on Vinted with size 14 labels were displaying on the service as size 20–22.
"If buyers measuring 20-22 acquire them they may become frustrated," she said.
Necessary Adjustments
Charlotte Lunn, based in Derby, said she had been left angered because the modification necessitated personal updates the measurements for "each individual item".
"Personally, this is quite irritating, as I'm chronically ill and Vinted sales have been crucial following partial earnings loss," she explained.
Marketplace Information
The app has more than 100 million users, comprising 18 million UK members.
It has proved a popular alternative to second-hand platforms like eBay and Depop.
This represents another occasion that an unexpected update to the app has proved unpopular: last year, the service retracted a modification regarding delivery choices following member complaints.
