The fashion field has been called out for its involvement in social, cultural and environmental sustainability issues which range from animal and human exploitation to the pollution of ecosystems. Conversations on fashion and sustainability – on what the issues are, who is responsible, and what can be done to resolve them – have grown exponentially over the past decades, sparking actions that, although significant, are not committed or drastic enough to drive lasting change. In this thesis, I highlight fashion professionals as a key population within the fashion field with the potential to engage with sustainability by caring, acting and changing or driving change. I interviewed nine fashion professionals from different parts of the world who shifted their careers to tackle sustainability issues. These are individuals who are conflicted about working in a field that has negatively impacted people and the planet, but who have responded to this by engaging with as opposed to detaching themselves from sustainability issues. Their insights helped identify factors that impede or facilitate fashion professionals’ engagement with sustainability, unlocking answers and possible solutions to sustainability issues through caring, acting and changing.