Corporate social responsibility (CSR) has become increasingly important in business practices. Firms operating toward society, environment, and ecology can receive greater support in all aspects. Those in fashion industry have also placed a growing focus on CSR as a means of improving corporate reputation and positive attitudes among their customers. This research aims to investigate the influence of CSR on corporate reputation and brand satisfaction by focusing on the fashion industry. For empirical analysis, data collected from of 279 customers in Vietnam is used. Structural equation modeling (SEM) is employed to test the hypotheses in the research model. The findings reveal that customers who perceive fashion brands as socially responsible are more likely to envision a favorable corporate reputation and (thus) exhibit higher levels of satisfaction with the brand. This research underscores the importance of CSR practices and suggests that existing fashion brands, as well as entrepreneurs planning to start a business in the fashion industry, should focus on CSR activities to sustain and develop their businesses.