During the last decades, consumers have become increasingly concerned about social and environmental issues (Cone, 2009; Kleanthous, 2011) and “want the brands they use to reflect their concerns and aspirations for a better world” (Bendell and Kleanthous, 2007, p. 5). Ethical and environmental consumerism has become a mainstream phenomenon in contemporary consumer culture (Doane, 2001; Low and Davenport, 2007) and consumers either reward or punish companies that stress or ignore the importance of social and environmental excellence (Grail Research, 2010). From a firm perspective, investing in activities promoting sustainable development is increasingly recognized as an important source of competitive advantage (Porter and Kramer, 2006) and demonstrates a differentiator in most of the industries. According to a study conducted by the United Nations Global Compact and Accenture nearly 97% of the participating CEOs see sustainability as important to their company’s future success (UN and Accenture, 2016). The main reason and motivation to take action in sustainability issues is not the potential for revenue growth and cost reduction but rather the enhanced performance of the brand, trust and reputation (Lacy et al., 2010). Hence, financial rewards seem not to be the prioritized key driver for sustainability-oriented actions, since most companies are not able to explicitly quantify the benefits of their activity (UN and Accenture, 2016). But even though ethical and environmental issues have become an essential component for the evaluation and selection of brands and potential consumers may care about ethical issues, they are unlikely to compromise on traditional product attributes, such as value, quality, price, and performance (Chen and Chang, 2012). Accordingly, examining the influence of a brands sustainability orientation - as perceived by consumers - on brand related factors such as brand reputation and perceived brand value is of special importance for marketing research and practice. For that reason, the present paper examines the effect of brand sustainability on brand reputation and customer perceived value of a brand. Therefore, a measurement instrument was developed, that considers implicit and explicit pathways of human information processing and thus combines conscious and unconscious evaluations of a brands sustainability. Finally, the transfer from a positive customer evaluation to brand performance in terms of brand-related perception and brand-related behavior is examined.