Consumers can shape social environments through their clothing and thereby influence the perception of clothing consumption. However, the human desire of belonging and connectedness within a consumer culture has led to the severity of overconsumption. This is particularly apparent in the dynamic and trend-sensitive field of clothing. Such acts of consumption have a strong impact on the transformation of the Earth’s climatic condition. Nevertheless, global environmental issues are often an elusive picture of the climate crisis what makes it difficult for individuals to associate own lifestyles to it. To combat this dissonance and with Generation Z as the consumers of change, this study focuses on teachers of upper secondary schools and the ways they can be supported in the education on sustainable clothing consumption. For this, eight specific categories of investigation have been crystallised through the data collection, such as sustainable development, teaching and transdisciplinarity, sustainable clothing consumption, lifestyles, social anxiety, overconsumption, mindfulness and teaching materials for sustainable clothing consumption. Within those categories, teachers provided their understanding of how sustainable development is implemented in the Swedish education system and how sustainable clothing consumption could interlink individual contributions to environmental issues. A desired collective shift is facilitated through knowledge development that on the one hand is significant in the students’ perspective but on the other hand is also relevant for teachers within their proficiency and beyond. With a resulting concept of education on sustainable clothing consumption and transdisciplinary teaching, teachers shall be aided in their duty to encourage their students to become responsible citizens.