Members of the platform have expressed outrage following a change that caused products showing incorrect sizing.
The popular resale platform has altered its size classifications for women's and children's clothes without notifying all users about the change.
Online Platforms Backlash
Many shoppers and sellers are expressing on platforms claiming that product pages now present a modified sizing category versus the original listing as a result of the reclassification.
Vinted explained the revised method more closely matches comparable marketplaces.
It has advised users to review their products and manually change the size when needed, resulting in member annoyance.
Sizing System Updates
Previously, the measurements included a single numeric size and a letter, for instance S/8 or M/10.
The revised method features a letter and a range like S/UK 8-10.
With some products, the size labels have been reassigned - like an L measurement was previously a 12 but is now a UK 16-18.
Member Accounts
One content creator, who creates plus-size fashion videos, stated the update "complicates both purchasing and selling".
"Not many brands say XL is a 20-22," as the platform currently indicates.
Stephanie Gallen, from Glasgow, explained products she uploaded featuring size 14 markings were showing in the marketplace as measurements 20-22.
"If anyone [who is] size 20-22 buys them they may become frustrated," she explained.
Required Changes
Another shopper, based in Derby, said she had been left angered by the change as she had to manually change 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 stated.
Marketplace Information
The app has more than 100 million shoppers, comprising 18 million UK members.
It has proved a popular alternative versus similar marketplaces including eBay and Depop.
This is not the initial instance where an unanticipated change on the platform has faced criticism: previously, the platform withdrew an update regarding delivery choices following member complaints.