Members of the platform have expressed outrage after an update resulted in listings displaying inaccurate size information.
This online marketplace has revised its sizing categories for women's and children's garments failing to inform every member regarding the update.
Countless users and merchants have taken to social media claiming that product pages now present a different size category versus the original listing as a result of the reclassification.
The company said the updated approach better aligns with comparable marketplaces.
They have suggested members to review their products and adjust the sizing manually where appropriate, causing user dissatisfaction.
Earlier, the measurements included numerical and alphabetical indicators, like S/8 or M/10.
The updated approach includes an alphabetical indicator and numerical range for example S/UK 8-10.
With some products, the size labels have been reassigned - like an L measurement was previously a 12 but currently displays as UK 16-18.
Frankie Bridger, who creates plus-size fashion videos, explained the modification "makes transactions more difficult".
"Not many brands say XL is a 20-22," which is what Vinted now does.
Another user, located in Scotland, said garments she listed featuring size 14 markings were showing in the marketplace as size 20–22.
"If anyone [who is] size 20-22 buys them they may become frustrated," she said.
Another shopper, based in 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 selling on Vinted has been paramount following partial earnings loss," she explained.
The platform boasts over 100 million shoppers, with 18 million British users.
It has emerged as a preferred choice versus similar marketplaces including eBay and Depop.
This represents another occasion when a surprising modification on the platform has faced criticism: earlier, the platform withdrew an update regarding delivery choices due to shopper criticism.
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