Whenever the Duchess of Cambridge (36) wears an affordable designer piece, it is most likely to sell out within hours, which is called the “Kate Effect”. And her children are no different as Prince George (5) and Princess Charlotte (3) take after their fashionable mother. Now, Prince Louis (7 months) has made his first impact on the fashion industry as well.

Prince Louis is already a fashion icon at seven months

For the official photographs for Prince Charles’ 70th birthday, the whole family came together and little Louis also made one of his rare appearances. For this special photograph, the prince was wearing a white and blue smock with peter pan collar by Spanish brand “La Coqueta”.

The smock was sold for just under £75 and then reduced down to £55. Shortly after that, it was sold out in all sizes worldwide, “Hello!” reports. "These outfits never go out of fashion, they are so timeless, I think it was a lucky coincidence," La Coqueta founder Celia Munoz told “People”. Looks like Prince Louis might just be the latest royal fashion icon!