Power dressing usually comes in the form of a suit or a wide-shouldered wool coat. But right now, things look a little different. This week, Greenland’s prime minister, Jens-Frederik Nielsen, appeared at a joint press conference with Denmark’s leader to say that he had no intention of acquiescing to Donald Trump’s stated desire to “own” Greenland – all while wearing a glacial-blue windbreaker. It is a garment Nielsen wears regularly but, in this shifting geopolitical moment, it took on a new, loaded and striking messaging. A practical outer layer, the windbreaker or anorak is widely seen as a modern descendant of the parka, which was invented in the Arctic region to which Greenland belongs. Traditionally made from intestinal membranes from marine mammals – a proto-Gore-Tex – the parka was designed for survival. Nielsen’s jacket has been called “a modern take on the Inuit anorak”. Timothée Chalamet in London wearing a Marty Supreme promotional windbreaker. Photograph: Neil Mockford/GC Images The windbreaker’s resurgence has also been fuelled by popular culture. It followed one of the most rollercoaster …