Abstract. A wearable display is a class of display that is worn on the body and used to communicate information about the wearer. This paper introduces a novel wearable display system for application within team sports, specifically basketball. The system, termed TeamAwear, is shown to enhance and influence game-play by providing subtle visualizations that allow team sports stakeholders to more easily understand and interpret game-related data. The research is broken into three stages. Firstly a user-centred design process is employed to determine requirements and user needs; this is followed by physical development during which the system is constructed based on design decisions; and finally an evaluation is carried out by the intended end-users to determine the success of the TeamAwear system.