The study aimed to predict fashion orientation based on the satisfaction of basic psychological needs, with the mediating roles of social feedback need and social media addiction among Instagram users. The research employed a descriptive-correlational design. The statistical population included university students in Tabriz, and 397 participants were selected using a multi-stage cluster sampling method, based on Kline’s recommendation. Data were collected using the Social Feedback Need Scale for Social Media, the Social Media Addiction Scale, the Basic Psychological Needs Satisfaction Scale, and the Fashion Orientation Scale. Data were analyzed using SPSS-24 and AMOS-24 through path analysis. The results revealed significant correlations among the study variables (p < 0.01). Findings indicated that the satisfaction of basic psychological needs explained 19% of the variance in fashion orientation directly and 65% indirectly through the mediating roles of social feedback need and social media addiction. According to bootstrap and Sobel tests, these mediating effects were partial and statistically significant (p < 0.05). In conclusion, Instagram users whose basic psychological needs are not fully satisfied tend to seek more social feedback on social media, and as their dependence on these platforms increases, they exhibit a stronger inclination toward fashion orientation.