Gen Z are often cited as the most sustainably minded generation. But for a large proportion of young consumers, it’s not easy to stop buying £9 dusty pink cropped lounge sweats and other fast fashion online. Fast fashion firm Boohoo was one one of the rare winners of the Covid-19 lockdown, with sales up 45 per cent in the three months to May. But its share price has fallen by nearly a third in the last week, wiping out £1.5 billion in value, after allegations of malpractice b