Orsola de Castro is the global creative director of Fashion Revolution a not-for-profit organisation formed in response to the Rana Plaza factory disaster in 2013. We first met at London Fashion Week a year earlier, when Orsola was managing Esthetica the showcase for sustainable designers - and I (very superficially) stopped to ask her about the fabulous gold trousers she was wearing. A leading pioneer in the sustainable fashion world, 54-year-old Orsola created the label From Somewhere in the late 1990s, making upcycled clothes and items from off-cuts and end-of-roll fabric from factories in Italy. Now, a fully fledged fashion revolutionary, together with Carrie Somers, she leads a global movement calling for change in the fashion industry. Orsola de Castro is a leading speaker on sustainability and an author. Her first book Loved Clothes Last (How the Joy of Rewearing and Repairing Your Clothes Can Be a Revolutionary Act) has just been published by Penguin. Full of practical tips on how to lengthen the lifespan of your clothing and reveal your inner craftivist, it also contains staggering facts and figures on the impact fast fashion has on the workforce and the planet.