Sweater that mimics polar bear fur may keep you warm in extreme cold

An artificial fibre that mimics polar bear fur has been made into a sweater that is said to be as warm as down feather but without its thickness, but not everyone is convinced by the researchers' claims

New cosy clothes inspired by polar bear fur - BBC Newsround

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New polar bear-inspired sweater keeps wearer warm in extreme cold at fraction of thickness, study says

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