This study examines the condom purchasing and use habits of 256 college students in Norway and English-speaking Canada, and develops a structural equation model to explain condom purchase and use. In the model, intention to purchase condoms is influenced by self-efficacy in condom purchasing, as well as by intention to use condoms. Intention to use condoms is influenced by having a positive attitude toward condom usage and by self-efficacy in persuading a partner to use condoms. The implications for health promotion and social marketing campaigns are discussed.