This article studies the mobilisations that have developed since the beginning of the Yemeni revolutionary process in January 2011. Built on shared and extensive fieldwork, it examines the interactions between emerging practices and the “ structural properties of social systems ” .It assumes the duality of the revolutionary process that appears both produced by the actors that carry it and constrained by a historical, social and political structure. This paper thereby questions the capability of the revolutionary event not only to generate innovations but also to emerge at the intersection of emerging practices and the pro- cess' confiscation by former mobilisation networks and institutionalised political actors.