Fashion design as a field and fashion design methods are mostly based on visual values and expressions. This paper investigates alternative non-visual perspectives on fashion design aesthetics. The study on sound ontology in fashion, for example, is limited and presents a new and interesting potential territory to be explored. The main aim of this paper is therefor to explore ‘sonic fashion’ through speculative design research methods. The Soundtopia – a speculative fashion design method is presented as the introductory sonic explorations in regards to sonic identity. The paper introduces sonic qualities and sonic identities and suggests the new possibilities for alternative forms of design-thinking to open in research programs in non-visual aspects of person-object relationships in design.