Fashion designers can have a key role to play in making fashion more sustainable, as they are able to influence and contribute to all dimensions of fashion impact (economic, environmental, social, and cultural), both positive and negative. Fashion design education should be seen as a chance to make aspiring designers aware of the challenges and potential of design for sustainability and equip them with the knowledge and skills necessary to implement sustainable fashion approaches. Starting from this premise, the approach to various sustainability themes was examined in the particular national context of post-secondary schools offering fashion majors in Poland, one which so far has not been researched in any depth. The authors conducted interviews and analysed the publications, documents, web pages, and Facebook profiles of such schools. Their activities were examined and classified in respect of the main dimensions of comprehensive fashion education: art, craftsmanship, and business. The analysis provides a picture of the current situation and a review of the specific features of sustainable fashion education in both the global and Polish contexts. Contemporary fashion education requires multidimensional adjustments to curricula, reflecting the complex nature of sustainability problems. This is a global challenge, which in the Polish case is additionally exacerbated by insufficient and uncoordinated public support, problems related to the institutional context of private and public schools, and the low level of sustainability awareness among consumers.