The initial aim of digitalising the fashion industry was to streamline the design, production and business of physical products for the real world and to achieve sustainability with the help of different digital tools. However, with the recent emergence of the metaverse, the parallel world in virtual reality, a new horizon of digital fashion has been opened. It is not just limited to computer-aided design (CAD) and manufacturing (CAM), but rather runs throughout the fashion business, from product life cycle management and developing new business models that promote sustainability to connecting virtual and augmenting reality with fashion to enhance consumers’ experience through smart solutions. It has emerged as a multidisciplinary field of knowledge that attracts overlapping interests from the academics, researchers and professionals coming from fashion design, business and technology; computer science, software engineering, animation and gaming, anthropometrics, supply chain management and industry 4.0, big data and artificial intelligence, and industrial sustainability. The technological innovations that are making digital fashion possible can be clustered under following four themes: (1) digital design and e-prototyping, (2) digital business and promotion, (3) digital human and metaverse, and (4) phygital apparel and smart wearable technology. The technical areas associated with these four themes will be further explored in this presentation, and some snapshots of the state-of-the-art developments will be presented.