The rapid and strong development of fashion has been accompanied by a huge amount of waste in many ways. Therefore, fashion brands are actively finding solutions to help limit their impact on the environment. This report is an overview of the fashion value chain from materials, production, operations, and transportation to the final product, combined with the brand's corporate social responsibility. With the desire to bring Vietnamese brands closer to everyone, I chose Kilomet109 - "big sister" in the eyes of sustainable domestic brands to do my research. Throughout the article, I have done an in-depth analysis of the negatives and the positives related to the three factors of the Triple Bottom Line on sustainability, namely society (people), environment (planet), and economy (profit). I approach primary and secondary sources of information such as the brand's official website, founder interviews, trusted online newspapers, and academic websites to provide the most authentic information. Besides, thanks to the support from lecturers, classmates, and the knowledge from the lessons, I finished the most detailed and complete report that I could.
