"It's such a versatile coat - the perfect item for the British woman's wardrobe," said Alice Frances, one half of the London-based sisters who started the hilarious account told Stylist.
"And women of all ages are wearing it! It's stylish but also quite a safe choice. The Chanel-esq cut gives it a luxury feel, and the blue and white print is distinctive without being too bold. It really just goes with everything."
"Often we would notice at least five or six other people wearing the coat at the same time. We just kept spotting it everywhere, and friends did too."
And good new for those who missed out the first time around, the coat is back in stock and comes in two colours; the hugely popular blue version as well as a red alternative.
While Aussie fans will have to wait a little longer to purchase the coat, Zara have confirmed it will be hitting local stores this season.