Mark Sumner is a lecturer in Sustainability, Fashion and Retail at the School of Design, University of Leeds. He has specialist knowledge of the clothing industry and its supply chain as well as a research focus on circularity, microfibres, modern slavery and consumer behaviour. He is currently engaged in a research project exploring the impacts of the Covid pandemic on the UK industry and workers in the supply chain. His expertise in sustainable fashion is built upon over 15 years of experience of working for the UK’s largest clothing retailer, and his experience is further enhanced through a range of consultancy roles with brands, retailers and industry bodies. Mark made a major contribution to the House of Commons (UK Government) Environmental Audit Committee report on Fixing Fast Fashion.