This chapter examines the Sustainable Development Goal 12 (SDG 12) in the context of fashion and textiles industry. It critiques how current models of consumption and production are characterised by a dominant linear ‘take, make, dispose’ model, which is unsustainable and fails to account for planetary boundaries, ecological and social harms. The chapter then argues that for the fashion system to shift towards more sustainable and responsible practices, it is essential to rethink its foundational principles and adopt strategies align to the circular economy that can meaningfully advance SDG12. Drawing on expanded concepts of sustainability, the chapter outlines a multi-stakeholder integrated approach that interlinks economic, ecological, and social well-being to slow down the material flows of fashion. To illustrate how collective action can drive systemic change towards more responsible consumption and production patterns, the case study of Australia’s clothing product stewardship scheme, Seamless, is discussed in context to global regulatory changes. As an example of an Extended Producer Responsibility (EPR) scheme, Seamless highlights the potential and challenges of voluntary cooperative industry action and regulatory measures. Holding manufacturers liable for the lifecycle of their products could accelerate the transition to a circular fashion system, thereby reducing waste and fostering sustainability. The chapter highlights that while EPR is important, shifting consumer behaviour towards purchasing less clothing and wearing clothing for longer, will take a fundamental mindset change, will be critical. Ultimately, aligning the fashion and textile industry with SDG 12 is both an urgent necessity and a transformative opportunity to construct a more regenerative and equitable future.