This master's thesis explores the intricate relationship between attire and communication dynamics in contemporary business environments. The introductory part emphasizes the significance of business attire as a pivotal element reflecting employees' professionalism and exerting a significant influence on how their expertise, competence, and reliability are perceived within the business context. The focus of this thesis lies in analyzing the standards and norms of business attire across various sectors and industries such as banking, law, healthcare, technology, and sales and service sectors. By examining the historical development and theoretical foundations of business attire, along with presenting empirical research findings, this thesis underscores how clothing serves as a powerful tool in business communication, simultaneously shaping the initial impression individuals convey and influencing the quality of their communication with colleagues, clients, and other stakeholders in the business environment. Special attention is devoted to the context of diversity among organizational cultures and the cultural influence of organizations on business attire norms. Practical recommendations stemming from this thesis underscore the importance of adapting attire to the specificities of industry and organizational culture to maximize its positive impact on business communication and the cultivation of professional relationships. In conclusion, this work lays the groundwork for further research and the development of strategies aimed at enhancing understanding and application of business attire in contemporary business settings, encouraging ongoing reflection and adaptation in dynamic business environments.