Shein

Shein is the most prolific polluter among fast fashion brands, releasing over 6.3 million tonnes of CO2 equivalent annually — 20 times more than the average European fashion brand. Its production of 6,000 new styles daily results in garments using polyester blends with toxic chemical levels exceeding EU safety limits by 20x. Forced labor links in its supply chain further worsen its record, making it unmatched in exploitation, outstripping #2 Temu in environmental damage by 15% per item. Gen Z's obsession with $500 haul videos on TikTok fuels this cycle, each purchase contributing to single-use waste that clogs landfills faster than any rival.