The interplay of dance and costume in the digital world is a subject that hasn’t been widely explored yet, although they are inextricably connected to one another. Concepts like how a costume serves a specific movement, how the movement highlights the design of the costume or what other information/qualities can be extracted from seeing oneself in a specific garment, can be transferred from the physical world to the digital, opening new roads not only for choreographers and costume/fashion designers but also in other fields such as cultural heritage preservation, game design and animation, dance research and dance and fashion education. The last years, dance and costumes they are both being studied separately in terms of their digital forms and applications. Augmented performances for artistic expression, assistance of dance learning and education through avatar-teachers, repository creation, choreography and preservation of cultural heritage are some of the areas that benefit a great deal from new medias and technologies. For costumes and apparel, 3d CAD and cloth simulation technologies are revolutionizing the way garments and historic costumes are preserved, designed, prototyped, and demonstrated in fashion shows.