Shoppers are voicing their frustration after an update resulted in listings displaying inaccurate size information.
This online marketplace has revised its measurement guidelines for women's and children's garments without notifying all users about the change.
Numerous buyers and vendors have taken to social media stating that platform listings now display a different size category than originally posted as a result of the reclassification.
The platform stated the updated approach better aligns with similar services.
They have suggested members to review their products and update the measurements by hand when needed, resulting in member annoyance.
Earlier, the sizing featured numerical and alphabetical indicators, for instance S/8 or M/10.
The new system has an alphabetical indicator and numerical range for example S/UK 8-10.
In some cases, the sizing has been recategorised - such as a large size was formerly size 12 but currently displays as UK 16-18.
A fashion influencer, who creates plus-size fashion videos, stated the update "complicates both purchasing and selling".
"Not many brands say XL is a 20-22," which is what Vinted now does.
Stephanie Gallen, based in Glasgow, explained products she uploaded featuring size 14 markings were displaying on the service as measurements 20-22.
"If anyone [who is] size 20-22 buys them they're going to be very disappointed," she said.
Charlotte Lunn, located in England, stated she felt frustrated because the modification necessitated personal updates the sizing for "all her products".
"Personally, this is quite irritating, since I have chronic health issues and Vinted sales have been crucial following partial earnings loss," she stated.
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 represents another occasion when a surprising modification within the service has received backlash: previously, Vinted reversed a change regarding delivery choices due to shopper criticism.
Maya is a tech journalist and digital strategist with over a decade of experience covering emerging technologies and startup ecosystems.