Fast-fashion industries have caused other problems in the fashion industry. They carry out massive fashion production in constant supply and sell the products to consumers. It produces a large number of discarded fashion products, which is extremely problematic because the products decompose and pollute the environment. The government, in response to the phenomenon, endeavors to find practical solutions, one of which is circular fashion. It relates to not only waste processing management but also resources processing. Garment manufacturers should no longer source raw materials from nature. They instead recycle processed materials, creating capital and resource parsimonies. Indonesia has applied circular fashion by conducting sustainable fashion. Albeit widespread in use and practice, sustainable fashion has not been included in the fashion school curriculum. We, accordingly, admonish fashion schools, especially those in Jakarta, e.g., IKJ and Polimedia, to incorporate it into their curriculum. We deployed the qualitative method to generate descriptive data. The data were then analyzed further, through which we could figure out the definition and implementation of sustainable fashion. We collected primary data through structured interviews with several informants, i.e., the department coordinators and lecturers from fashion schools in Jakarta, and secondary data from a literature review. The results demonstrated that, in general, IKJ and Polimedia, the department coordinators, and lecturers understood sustainable fashion, including its definition, implementation, and aspects, namely environmental, social, economic, aesthetic, and cultural. And yet, the implementation of sustainable fashion in the curriculum is still poor, as amending the curriculum is intractable. Some coordinating meetings addressing the curriculum arrangement and curriculum-related activities were necessary.