Sales of sweatpants soar as fashionistas embrace the joys of an elasticated waistline in their working-from-home outfits Traditionally, tracksuit bottoms have been the enemy of fashion. Karl Lagerfeld’s withering, oft-quoted maxim – “Sweatpants are a sign of defeat. You lost control of your life so you bought some sweatpants” – summed up an attitude, certainly in some luxury fashion circles. But lockdown has brought change. Last week, Anna Wintour, Vogue editor in chief, stun