If all clothing production worldwide stopped overnight, how long could existing garments sustain the global population of 8 billion? Julia DeVoy, dean of undergraduate programs at Boston College's Lynch School of Education and Human Development and a researcher of the fast fashion industry, puts the upper estimate at 20 years. She also suggests that once production halts, underwear and socks would be the first to disappear from shelves, followed by high-quality cotton and denim garments.

Key Points

  • DeVoy estimates that U.S. discount stores and big-box retailers would clear their inventory about 4 to 5 weeks after production stops: normal inventory runs about 70 days, and panic buying at double the normal demand would halve that time directly.
  • Using the "dead stock" of 45 billion of the roughly 100 billion garments produced annually that are never sold, she calculates that at 1 to 2 garments per person per year globally, this stockpile could last 3 to 5 years.
  • Chile's Atacama Desert receives 131,000 tonnes of used textiles annually, of which over 70% (92,000 tonnes) goes directly to landfills or illegal dumping sites; Ghana's Kantamanto Market in Accra receives about 15 million garments per week, with over 40% immediately becoming textile waste.

The Depletion Sequence After Production Stops
DeVoy breaks down the "sell-out timeline" for clothing by channel. U.S. discount stores mostly operate on a just-in-time model with limited shelf inventory. Take TJX Group (parent company of T.J. Maxx and Marshalls) as an example: its inventory turnover in mid-2026 was about 70 days, which at normal sales rates would last 9 to 10 weeks after supply is cut off. But a production halt would trigger hoarding psychology. She cites the early COVID-19 pandemic buying surge: household essentials sold 70% to 170% above normal levels, and stockpiling spending was 70% to 80% above daily averages. Even under the conservative assumption of doubled demand, discount stores would only have enough clothing to sell for 4 to 5 weeks.

Thrift stores are the next to be hit. DeVoy says secondhand shops already receive far more donations than they can handle, but only 20% to 30% of what they receive actually makes it to the sales floor—the remaining 70% to 80% is currently exported, incinerated, or landfilled, not because it can't be sold, but because the volume far exceeds shelf capacity. Even if all this backlog were put out for sale, it would only last a few months.

Hidden Reserves and Waste Sites
Once inventory is cleared, people would turn to several types of "invisible reserves." First is dead stock: about 100 billion garments are produced globally each year, and roughly 45 billion never reach buyers. At 1 to 2 garments per person per year for 8 billion people, this stockpile could sustain global consumption for 3 to 5 years—DeVoy judges this could probably get us through the first five years.

Second are textile waste dumps and household wardrobes around the world. Chile's Atacama Desert receives 131,000 tonnes of used textiles annually, with over 70%—92,000 tonnes—directly landfilled or illegally dumped; Ghana's Kantamanto Market receives about 15 million garments per week, with over 40% becoming waste on the spot. DeVoy says similar-scale sites exist across Southeast Asia, Africa, and Latin America. Meanwhile, 80% of the clothes in people's wardrobes go unworn year-round, and Americans buy an average of 68 new garments per year. She estimates that waste dumps and household wardrobes combined could last another 15 years or so.

Durability Differences Between Cotton and Synthetics
A production halt could also shift people's material preferences. DeVoy believes high-quality fibers like cotton and denim would trigger a "gold rush," with people scouring thrift stores, clearing shelves, swapping wardrobes, and garment repair making a large-scale comeback.

Tasha Lewis, a clinical associate professor at Ohio State University who studies clothing and retail, points out that synthetic garments degrade slowly and persist longer—"ultimately we might end up with more polyester around us"—because the timeline for their complete degradation remains unknown. She predicts that recycling existing garments will also become a standard option.

Abigail Clarke-Sather, an associate professor of mechanical and industrial engineering at the University of Minnesota Duluth and a textile recycling expert, highlights a societal shift: over the past century, expectations about how often clothes should be replaced and how many styles one should own have steadily risen, wardrobes have grown larger, and they are stuffed with garments people don't know how to dispose of. The United Nations and other bodies often cite the claim that "there are enough clothes on the planet to dress six generations," but after tracing its origins, the BBC noted that neither the calculation method nor the original source of this figure is clear.

For the used clothing trade and textile recycling industry, the value of this thought experiment lies not in a literal "production halt," but in quantifying a fact that has been repeatedly felt: the global backlog of secondhand and waste textiles is large enough to sustain years of consumption. What is truly scarce is the capacity for sorting, shelving, recycling, and recirculation—not the clothing itself.

Source: How long would it take the world to run out of clothing if production suddenly stopped? · Originally published 2026-10-02