Workplace flexibility has been increasingly popular for years, and even more so since the onset of the pandemic. However, research findings on the influence of flexible working on employee well-being are inconclusive. This is partly because the studies fail to take into account the fact that flexible working is embedded in the way people work, and that it is ambivalent. Indeed, flexibility is sometimes experienced as a benefit granted by the organization, which may allow the employee to go to the doctor in the middle of the day. At other times, it is experienced as a contribution by the employee to his or her organization, for example by working late to meet customer demands. Thus, individual experiences of flexibility can vary considerably. In all cases, employees can play an active role in the construction and interpretation of flexibility. This project aims to investigate employees' dynamic and idiosyncratic experiences of work flexibility, and how these experiences relate to their well-being.