Digitalization has radically transformed the marketing activities of businesses and traditional marketing methods have been largely replaced by digital marketing strategies. Today, digital marketing tools enable companies to reach their target audiences at lower costs, better understand customer behavior through data-driven analysis, and personalize their marketing campaigns. When digital marketing strategies are aligned with sustainability goals, they have the potential to help businesses reduce their environmental impact and adopt more responsible production-consumption models. In this context, it is of great importance that brands act with a responsible marketing approach and encourage consumers to adopt conscious and sustainable consumption habits. Sustainability is a holistic approach that aims to secure the living conditions of future generations by using existing resources efficiently and consciously. In today's digitalized world, marketing is seen as a field that plays a central role in solving sustainability problems, as it has the power to direct the consumption habits of individuals and societies. From this point of view, the subject of this study is sustainable advertising activities that involve companies' rational and profit-oriented response to environmental and social problems. The aim of the study is to reveal how digital marketing processes can be integrated with sustainability principles and to examine the place of sustainable advertising in marketing strategies. In this context, the study analyzes how companies communicate their sustainability approaches to consumers through advertisements within the framework of the subject, purpose, message, visual impact of the advertisement and the United Nations Sustainable Development Goals (SDG) 2030, Goal 12: Responsible Production and Consumption. The study, which adopts a qualitative research method, uses case study analysis to analyze Mavi's “All Blue” advertisement published on digital platforms within the scope of sustainability. As a result of the study, it was concluded that Mavi's “All Blue” advertisement has strengths and weaknesses in terms of its subject, purpose, message and visual elements, and that it partially meets three of the eight sub-headings of SDG Goal 12 and meets two of them.  This result reveals that while supporting the brand's sustainability strategy, more concrete steps should be taken to ensure consumer trust.