Another reader said the dress looked "hideous," writing that it "looks like her stomach has exploded and spilled out her intestines."
"Makes me think she’s wearing her intestines. It is truly hideous. Maybe it was an inside joke to see how many people would buy it," agreed one person.
I wasn’t going to fork out £361 on my dream hen do dress so found a Shein dupe instead and saved hundreds - I’m so impressed
One Mumsnet user said the dress was giving "aliens ate my bowel fashion inspo."
"The pattern is abstract gynecological, isn't it?" asked another social media user.
"Oh, good God! Jesus Christ! Oh dearie dearie me! What were they thinking of when they designed that grotesque monster?!" asked one woman.
Another Shein shopper compared the look to "an exotic animal autopsy."
"Even the model won't show her face in it," joked another unimpressed reader.
How are Shein’s prices so low?
Shein is known for its low price points, with almost 90 million people worldwide using the budget fast fashion site.
There are a variety of reasons why the company can ensure affordable prices, including:
Outsourced labour
Majority of Shein’s factories are located in China, where the minimum wage is lower than most countries.
Less expensive materials
Shein mass produces popular styles using cheaper fabrics, adding 1,000 items to the site every day.
Online format
Shein is located entirely online with no physical locations, keeping their operating costs low.
Direct to consumer
Skipping the retailer and offering goods directly from manufacturer to consumer lowers shipping expenses.
Influencer marketing
Paying content creators to share their Shein hauls is a cheaper marketing model than paying for social media ads and celebrity endorsements.
Discounts
Discount and promo codes keep prices low for customers while encouraing them to buy more items.
One person pointed out that the flesh-like pattern gave out "Hannibal Lecter vibes."
"That is waaaaaaaayyy worse than I expected," said another Mumsnet user.
"It calls for a good old-fashioned word - ghastly!" wrote another commenter.
Other readers said they could picture the vision behind the unique look.