The drive for ‘behaviour change’ dominates public discourse on sustainability. Design is implicated by supplying ‘sustainable’ products intended to covertly influence users to enact more sustainable behaviours – such as saving water or energy – or by supplying overt ‘educational’ messages about what people should be doing differently. More often than not, sustainable designs are unpractised – emerging from problem contexts where people are conceived primarily as biomechanical entities, albeit desiring ones. From this perspective, the concept of ‘behaviour’ can be seen as highly individualised and radically disarticulated from the actual contexts of everyday life. Social practice theories challenge the change agency of ‘behaviour’ by offerin...