Vinted users have been reacting angrily due to a modification that led to products showing incorrect sizing.
This online marketplace has altered its sizing categories for women's and children's garments but did not contact every member regarding the update.
Countless users and merchants are expressing on platforms claiming that product pages now present an altered size classification compared to what was initially listed as a result of the reclassification.
The platform stated the revised method more closely matches comparable marketplaces.
They have suggested members to examine their items and update the measurements by hand when needed, resulting in member annoyance.
Before the change, the measurements included one number and one letter, such as S/8 or M/10.
The revised method features a letter with a size spectrum such as S/UK 8-10.
In some cases, the measurements have been reclassified - for example a size L was formerly size 12 but is now a UK 16-18.
Frankie Bridger, who creates plus-size fashion videos, said the change "makes both selling and buying harder".
"Not many brands say XL is a 20-22," which is what Vinted now does.
Another user, from Glasgow, stated items she posted with size 14 tags were displaying on the service as size 20–22.
"Should someone sized 20-22 purchase these they will likely be quite upset," she explained.
Another shopper, from Derby, said she had been left angered because the modification necessitated personal updates the sizes on "every single listing".
"For me this is particularly frustrating, because of my ongoing medical condition and selling on Vinted has been paramount after experiencing income reduction," she explained.
The platform boasts over 100 million members, comprising 18 million UK members.
It has become a favored option compared to resale services such as eBay and Depop.
This isn't the first time where an unanticipated change on the platform has faced criticism: last year, the platform withdrew an update regarding delivery choices due to shopper criticism.
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