If there is one takeaway lesson from the successive moments of crisis into which the fashion industry has plunged in recent years, it is that participants in the apparel sector can no longer, in good conscience, increase their frequency of production and output without ensuring that they are doing so responsibly. Dr Leonardo Bonanni set out to bring clarity to supply chains, and the unique inventions that resulted have proved that transparency, sustainability and traceability can be fashionable. And his clients, who include Eileen Fischer and Vivienne Westwood, couldn't agree more.