In recent decades social research on youth in Italy has explored a wide range of issues through different interpretative and methodological approaches. However, there are very few studies that seek to identify the keynote features of juvenile condition. This article argues that collective identities and forms of identification among youth are shaped more and more frequently through the sharing of social practices, of the meanings connected to these practices, and of more comprehensive lifestyles. With reference to four main fields (sport, music, politics, religion) and focussing on youth cultures, it analyses the connections between behaviours, attitudes, values and representations of youth actively involved in each of these different fields. The aim is to identify transversal processes through which young people today elaborate and adopt social practices and cultural profiles, create new social forms, and develop innovative signification processes.