Drawing on the notion of ethical subjectivity (Foucault, in Fruchaud, Lorenzini (eds) Discourse and truth and parrēsia. The University of Chicago Press, 1983; Foucault, in Rabinow (ed) Essential works of Foucault 1954–84, The New Press, 1997), cognitive dissonance theory (Festinger, A theory of cognitive dissonance, Stanford University Press, 1957) and transgressive behaviours (Jenks, Transgression, Routledge, 2003), this research addresses the empirical question of how regular consumers of sustainable fashion overcome cognitive dissonance when they transgress their own code of conduct in (...) sustainable fashion consumptionscapes. We utilize a top-down thematic analysis (Braun and Clarke, Qual Res Psychol 3:77–101, 2006) of 20 semi-structured existential-phenomenological interviews (Cherrier, in Harrison, Newholm, Shaw (eds) The ethical consumer, SAGE Publications, 2005) and depict a novel, behavioural-level, practice-based cognitive-dissonance-reducing strategy that we term the strategy of _alternating moral practices_. We demonstrate this dissonance-reducing strategy to be more than just a withdrawal from the value systems attributed to sustainable fashion consumption, either temporary or permanent. Rather, regular consumers of sustainable fashion demonstrate hands-on efforts to find ways of doing that manifest an alternative ethical behaviour. This strategic action is, in turn, held to be enhancing the ethical subjectivities of the consumers. Theoretical discussions of the relationship between these expanded ethical subjectivities and their host consumptionscapes are provided. Using this new approach to understanding transgressive behaviours in the market for sustainable fashion, a range of directions for future research are suggested. (shrink)