This first of this set of books presents the various sustainable approaches in terms of circular economy and micro plastic pollution pertaining to the textiles and fashion supply chain. Sustainability is one of the important aspects in today's industrial context, which is followed by every industrial sector with no exception to textiles and fashion. Sustainability and strict adherence to the principles of sustainability has become  one of the essential needs in industry. There are countless measures in terms of various approaches to make the textiles and fashion sector sustainable. These measures, but not limited to, range from innovating and implementing new fibres and raw materials, introducing innovative manufacturing methods, chemicals, processes to focus on all the possible stages of a textile product's life cycle from cradle to grave. These approaches include making the textiles and fashion sector circular and also development of new products from sustainable raw materials/processes or combination of both.