What it is
Fast fashion is a business and consumption model where clothing companies quickly make cheap, trendy clothes to sell in large quantities. Brands design new items based on current social media trends and produce them as fast as possible. This business strategy encourages people to buy new clothes frequently and throw away older items after wearing them only a few times. Well-known global brands in wealthy nations focus on driving up profits and lowering prices for shoppers.
To meet this intense demand, factory owners and local suppliers in the Global South cut production costs, forcing garment workers to suffer very low wages, long working hours, and unsafe factory environments. At the same time, consumers in wealthier countries are constantly targeted by aggressive online marketing. This constant pressure drives people to buy cheap, trend-driven clothes and dispose of them quickly without thinking about the consequences.
Meanwhile, local communities near polluting factories and international waste sites experience the heaviest impacts, as constant manufacturing and disposal create massive amounts of environmental pollution and synthetic waste.
Personal stories
Fatima’s story: Fatima, 22, works in a garment factory in Dhaka, Bangladesh. She works 12 hours a day sewing synthetic T-shirts for popular overseas fashion brands, but her monthly salary is barely enough to pay for food and rent. The river near her village has turned black due to toxic chemicals dumped from nearby dye factories. This makes the local water unsafe to drink or use for farming.
Yuki’s story: Yuki, 19, is a college student who lives in Kyoto. Influenced by daily social media, she often makes fast-fashion "hauls"—where a person buys a large number of cheap, trendy clothes at once and shows them off in photos and short videos to their followers. Yuki buys new online clothes almost every week to share on social media. After a few washes, many of her cheap polyester tops lose their shape, so she throws them away. She rarely thinks about where her clothes go after throwing them away—or how washing synthetic fabrics releases microplastics into the ocean.
Some broader issues
Global supply chains exploit vulnerable workers: Most fast fashion items are produced in Global South nations where labour laws and workplace protections are weak. Garment workers—who are predominantly young women—often earn less than a living wage, work long overtime hours, and face dangerous factory conditions. Because large brands use complex networks of overseas subcontractors, it is easy for them to avoid legal responsibility for labour abuses happening inside these factories.
Factory pollution and toxic chemicals: Clothing production requires vast amounts of clean water, energy, and hazardous chemical dyes. Untreated wastewater from factories is frequently dumped directly into local rivers and agricultural land, poisoning water sources, destroying surrounding ecosystems, and causing severe health problems for nearby communities that rely on these rivers for daily life.
Global textile waste and landfill dumping: Millions of tonnes of discarded synthetic clothes are exported from wealthy nations to countries in the Global South every year. Local markets in receiving nations cannot handle this overwhelming volume of second-hand clothing. This leads to massive amounts of unsold garments being burned in open dumps or piled up in landfills. In these landfills, synthetic fabrics take hundreds of years to break down completely.
Overconsumption driven by aggressive marketing: Modern fashion companies use social media algorithms, online influencers, and rapidly changing micro-trends to convince consumers that they constantly need new outfits. This constant marketing treats clothing as disposable single-use items rather than durable goods. It also hides the real human labour and environmental damage involved in making cheap garments.
Synthetic materials and microplastic pollution: Most cheap clothing is made from synthetic petroleum-based fibres like polyester, nylon, and acrylic. When these garments are washed at home, they shed millions of microscopic plastic threads called microplastics into municipal water systems. These particles pass through filtration plants, poisoning marine life and entering the human food chain through drinking water and seafood.
Consumer awareness and local impacts in Japan: Japan is one of the largest clothing markets in the world. Many young consumers buy inexpensive, stylish clothes every week, but few shoppers consider the connection between their purchases, foreign factory conditions, and global textile waste. Promoting "ethical consumption" choices and encouraging people to buy less clothing can help reduce these global problems.
(1) Basic concepts: ファストファッションとは？ その定義や問題点、私たちにできることを解説
(2) Global impacts: ファストファッションが世界の廃棄物危機を悪化させている、と国連事務総長が警告
(3) Environmental links: BBC. (29 July 2022). Fast fashion: How clothes are linked to climate change. https://www.bbc.com/news/science-environment-60382624
(4) Worker exploitation: The Fuller Project. (2 May 2024). Fast fashion is one of the world’s most polluting industries. Its global workforce is paying the price. https://www.fullerproject.org/climate-change-fast-fashion-workers-cambodia-india/
(5) Corporate accountability: UN News. (27 March 2025). Fast fashion fuelling global waste crisis, UN chief warns. https://news.un.org/en/story/2025/03/1161636
(1) Local awareness: South China Morning Post. (4 January 2024). Uniqlo sells used clothing as Japan warms to sustainability. (3 minutes 24 seconds). https://www.youtube.com/watch?v=b8V9lTQdbfg
(2) Market trends: DW Planet A. (8 August 2025). How big fashion took over the second hand market. (12 minutes 45 seconds). https://www.youtube.com/watch?v=CAJDOw5EPSQ
(3) Sustainable innovation: BBC. (16 December 2020). Recycling fashion: The town turning waste into clothes. (3 minutes 52 seconds). https://www.youtube.com/watch?v=7i0QMnz4ExY
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