Book excerpt: This book examines how sustainability has the potential to transform both the fashion system and the innovators who work within it. Sustainability is arguably the defining theme of the twenty-first century. The issues in fashion are broad-ranging and include labour abuses, toxic chemicals use and conspicuous consumption, giving rise to an undeniable tension between fashion and sustainability. The book is organized in three parts. The first part is concerned with transforming fashion products across the garment's lifecycle and includes innovation in materials, manufacture, distribution, use and re-use. The second part looks at ideas that are transforming the fashion system at root into something more sustainable, including new business models that reduce material throughput. The third section is concerned with transforming the role of fashion designers and looks to examples where the designer changes from a stylist or creator into a communicator, activist or facilitator.