'The dress' is back: What colours are these flip flops? | ITV News
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What Color Are These Clothes? Latest Optical Illusion Baffles The Internet | IFLScience
This optical illusion of a pair of flip flops is making people question their sanity: 'Thought my brain was playing tricks'
Flip-Flops Are Like the New Dress - Blue and Black or White and Gold Illusion