Meet Glenn Martens, the man who made Diesel cool again

On the day the fashion designer Glenn Martens was announced as the new creative director at Diesel, no one was more excited than his big brother. “He was a megafan long before I got there,” says the Belgian designer of his elder sibling, a fireman. “His Instagram is dedicated to Diesel and has been for years.”

More than two years on, with celebrities from Nicole Kidman to Kylie Jenner lining up to wear the denim brand’s famous microminis and its show considered among the hottest tickets at Milan Fashion Week, pleasing diehard fans such as his brother is still a top priority. “I think it’s really, really cool that we are talking to the underground, to the cool kids, to the Kardashians — but it’s