Today’s generation is well averse to the concept of fast fashion, and they are the ones promoting it as well. The concept of fast fashion came into existence in the 1990s when consumer demand started changing rapidly. To cope with the rapidly changing demands fashion industry changed its techniques and started promoting the mass production of clothes with unsustainable practices. After aviation, the fashion sector accounts for 10% of global pollution. Fast fashion, which is based on low production costs, high consumer turnover, and relatively short garment lifespans, has contributed to the industry's continued success despite environmental concerns. This paper focuses on the hazardous impact of the fast fashion environment. Over 92 million tonnes of garbage and 1.5 trillion litres of water are created by the garment business. The researcher shows why the fashion industry needs to make some significant adjustments, such as reducing manufacturing and implementing sustainable practices across the supply chain, and why consumers should modify their behaviour by buying fewer garments and keeping them for a longer period of time. These changes highlight the importance of returning to slow' fashion, which limits and mitigates environmental repercussions to improve the long-term sustainability of the fashion supply chain.