The thesis researches fashion consumption from the perspective of young consumers and fashion creators in Croatian society. The paper starts from the phenomenon of fast fashion as a globally efficient and rationalized system characteristic of the paradigm of McDonaldization of society by Ritzer (1999), whose multiple social and ecological consequences are followed by Beck's (2001) concept of a society of globalised, irreversible risks and Wallerstein's (1986) concept of the dependence of the modern world of systems depicting the global supply chain of the fashion industry and its implications. Considering the increasing popularity of ethical fashion, which promotes the extension of the life of a piece of clothing and sustainability in business, the general research goal is to understand the sociological aspect of fast and ethical fashion at the level of attitudes and practices of young people and fashion creators in Croatia. A mixed method research was conducted by combining quantitative research using a questionnaire among young consumers (N= 802) and qualitative research using a semi-structured interview with five ethical fashion designers. The results show that the surveyed young consumers are familiar with the concepts of fast and ethical fashion, but do not express concern about its effects on society and the environment, and cite the high price as the main obstacle in switching to ethical consumption. In addition to the stated price, fashion designers also emphasize the importance of fashion trends among young people and see the promising future of ethical fashion in the awareness of both producers and consumers regarding supply chain transparency and sustainability. Bearing in mind the topicality and complexity of the researched issue, as well as its wider social significance, the contribution of this work is in a mixed methodological approach that provided multi-layered insights at the level of different actors. Thus, this thesis serves as an incentive for future research and as a landmark for (re)defining social policies on fashion and sustainability as the key to stitching a sustainable future.