This volume summarises the results of 'The Aesthetics of Sustainability', a research project led by ECAL/Ecole cantonale d`art de Lausanne. It brought together master students of product design, established materials specialists, manufacturers, and researchers with the aim of exploring and defining the aesthetic potential of a new generation of sustainable materials. The result is a series of fourteen case studies involving the development of materials made from textile waste, recycled paper, rubber granulate, or vegetable fibres. The resulting new materials can be shaped, pressed, woven, or welded. A selection of these materials will be presented through experiments and prototypes of products.