A secure "state of mind with regard to attachment", as assessed by the Adult Attachment Interview (AAI), as well as attachment styles as assessed by questionnaires (the two most prevalent facets of attachment representations assessed in adolescence and adulthood) were examined as potential contributors to adolescents' capacity for intimacy. Eighty male Israeli adolescents were administered the two measures and reported on their impulsiveness during their senior year of high school. Four years later, at the end of their mandatory military service, they were interviewed regarding their capacity for intimacy, and they filled out questionnaires. State of mind with regard to attachment and attachment styles uniquely predicted capacity for romantic intimacy and affective relationships with friends. Impulsiveness interacted with attachment security (benefiting dismissing and avoidant participants, and hampering secure ones) in predicting romantic intimacy. The discussion underscores the distinctiveness and importance of different facets of attachment representations to close relationships with peers.