With Labour blocking Andy Burnham from returning as an MP, the so-called “king of the north” came out wearing a simple black V-neck jumper with dark denim jeans. The Greater Manchester mayor, appearing at the launch of a Class Ceiling report at the city’s Whitworth gallery on Monday, looked quietly, subtly, the outsider. It might not sound like much. But that is the point of Burnham’s largely unnoteworthy look, which tends to involve Left Bank intellectual-adjacent black-on-black. In direct contrast to his tie-wearing colleagues in parliament, Burnham’s style feels particularly symbolic. Ever since his move away from Westminster politics, Burnham has been dressing differently, eschewing the uniform of his former suited-and-booted colleagues. Largely ditching the suit and tie, he prefers black bomber jackets, black jumpers with no shirt underneath, black blazers and black T-shirts, with the odd workwear jacket thrown in. Last week he wore a white T-shirt and aptly workwear-esque navy jacket to unveil a “concrete plan to reindustrialise the birthplace of the Industrial Revolution”. Andrew Groves, a professor of fashion design and director …