Members of the platform have expressed outrage due to a modification that led to items being listed as the wrong size.
The popular resale platform has revised its size classifications for women's and children's clothes but did not contact every member regarding the update.
Numerous buyers and vendors are posting online stating that platform listings now display an altered size classification than originally posted because of the remapping.
The platform stated the new system was more in line with comparable marketplaces.
The platform has recommended to check their listings and update the measurements by hand if necessary, which has left users frustrated.
Earlier, the sizing featured a single numeric size and a letter, for instance S/8 or M/10.
The revised method features a letter with a size spectrum like S/UK 8-10.
In some cases, the size labels have been reassigned - such as a large size used to be a 12 but is now a UK 16-18.
One content creator, who produces content about larger sizing, stated the update "complicates both purchasing and selling".
"Not many brands say XL is a 20-22," the way the service now categorizes.
A different member, located in Scotland, stated items she posted featuring size 14 markings were displaying on the service as size 20–22.
"Should someone sized 20-22 purchase these they're going to be very disappointed," she stated.
A different user, located in England, said she had been left angered by the change as she had to manually change the sizes on "every single listing".
"This situation is especially annoying, because of my ongoing medical condition and Vinted sales have been crucial following partial earnings loss," she explained.
The service features exceeding 100 million members, with 18 million British users.
It has emerged as a preferred choice versus similar marketplaces including eBay and Depop.
This is not the initial instance when a surprising modification on the platform has faced criticism: previously, Vinted reversed a change regarding delivery choices due to shopper criticism.
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