It has since been restocked, but with limited availability in sizes 4 to 16, after shoppers begged the brand to bring back the item.
"PLEASE RESTOCK THIS," one fan demanded on the brand's Instagram page.
"I neeeeed this," another wrote.
In a statement, the spokesperson also added it will be restocking in new colours at the end of this week.
"And then printed version (including PLT branded ones) next Tuesday."
The $27 bodycon dress is described to have "black jersey material with long sleeves, a figure-hugging fit and a mask detail".
The brand's Instagram post of Lottie posing in the dress has attracted more than 65,000 likes, with people eager to get their hands on the item.
"We need this!" one person wrote, tagging her friend.
"This is genius!!!" another added.
"Is it weird I want this," a third person asked.
A fourth person simply described the look as, "2020 fashion", while others wrote how much they "loved it".
But not everyone was convinced, with many questioning the unique design.
"OMG what is the world coming to?" one person asked.
"Why does this exist," said another.
"HOW IS THIS IS A FASHION STATEMENT? It's Mort's turtleneck from the Bazooka Joe comics, for crying out loud," a furious person also commented.
Some appeared to have other concerns with one woman pointing out the associated "make-up issues".
"I have seen this dress on your website and all I can think is 'what about all your makeup?'," one wrote. "The dress would be covered! And your makeup ruined."
However, others continued to be baffled by the look.
"I would rather be arrested for walking around in my birthday suit," one person wrote, while another added, "Mask dress. OK hon".
In August, a similar outfit also left shoppers stunned – it was of a skin-tight jumpsuit with an attached face mask.
A Twitter user spotted this fashion-forward look in a United States store and summed it up best by tweeting: "I actually just screamed."
It too attracted mixed reviews, with some defending the design and others hating on it.
"This is awesome," one person wrote, while another added, "Enough is enough".