Borders provide an important conceptual framework to explore the histories of mobilities research, from work addressing cross-border migration patterns to borders as a mechanism that holds back the movement of people, often containing or controlling citizens. This chapter conveys focus from the fixed and bounded notion of mobility and movements across the globe to the opening up of more fluid borders. It argues that citizenship is an important mechanism for understanding the borders between disabling design practices of inclusion and exclusion. The chapter illustrates the blurring of theoretical and disciplinary borders, by exploring the role of design thinking in human-computer interaction (HCI) and by examining geographical approaches to citizenship, impairment and mobilities. Finally, it analyses the importance of 'locations' in mobilising design, by examining the organisational setting where the first author held weekly workshops 'in place'; and by exploring user-led design practices interactions with artefacts of mobility that unfolded whilst 'on the move' with visually impaired users.