Clothing production is changing. From factory safety, worker conditions and animal rights to supply chains – by which we mean the network of people, resources and activities involved between the company and its suppliers to produce a specific product – all elements of production are under scrutiny, and consumers care. Ruth Romer, Private Sector Advisor at WaterAid, explains why and how multinational corporations should be investing in sustainable development. Beyond the apparel sector, global supply chains have a disproportionally large part to play in some of today’s most pressing social and environmental challenges, including access to clean water, decent sanitation and hygiene for people living in poverty globally. With 80% of global trade flowing through multinational corporations and one in five jobs linked to global supply chains, this presents an opportunity for scale and reach in driving positive change.