After a year, the black-and-blue/white-and-gold viral dress mystery - the puzzle that divided friends, tested people's tolerance of the 'wrong' colour and displayed the best of everyone's convincing skills is back and it's all over the internet again.

This time, an Adidas jacket is seriously dividing opinions on social media.

Twitter user, Mariam, posted a photo of her new jacket online but said some of her friends could see white and blue, while she sees black and brown.

The horror strikes back with this question: 

So, here's the deal - it is back and it will ruin your day BUT what do you think the colour is?