This chapter aims to evaluate the situation of dumping grounds in some regions of the world and to size its impact on the European Union’s (EU) expectations to achieve sustainable development. The purpose is, therefore, to analyze the effectiveness of the principle of sustainable development in the final stage of the production chain of fast fashion clothing, seeking to bring an analysis centered on international and European law. The research method adopted in this chapter is based on bibliographic and documental analysis as well as a case study. It concludes that there is a possible European success in enacting a due diligence directive with a specific scope to curb market practices that continuously make products and exempt themselves from responsibility, thus disregarding the sustainability of the environment.