Halloween costume swaps are gaining traction as a practical way to celebrate while cutting down on waste and costs. On a recent hot afternoon in Los Angeles, a campus swap drew students and staff hunting for free looks that might otherwise end up in the trash.
One attendee tried on a Hawaiian flower lei and a shark suit, settling on a playful ocean-themed costume for a dance party. He said the idea of reusing outfits helps both budgets and the planet.
Across Southern California and beyond, Halloween costume swaps and thrift stores are offering alternatives to single-use outfits made from synthetic plastics that do not break down easily. Organizers encourage people to donate clean costumes and pick something new, reducing what goes to landfills and lowering the resources and emissions needed to manufacture fresh items.
According to the National Retail Federation, Americans are expected to spend about 4.4 billion dollars on costumes this year. The Environmental Protection Agency estimates that in 2018 alone, people discarded about 11.3 million tons of textiles, according to the Environmental Protection Agency.
Sustainability experts say the same basic principles apply to holiday dressing as to everyday shopping: reduce, reuse, recycle.
Why Halloween costume swaps matter
Researchers note many costumes resemble fast fashion. They are typically made from cheap plastic-based fabrics that are not built to last.
Clothing production contributes an estimated 4% to 10% of global carbon emissions, and textile dyeing accounts for roughly 20% of industrial wastewater worldwide. Synthetic fibers can shed microplastics during washing, which then make their way into oceans, air, food, water, and even human tissues.
Many of these materials are derived from oil, and their lifecycle adds to pollution and climate change that fuels extreme weather. Production methods also make disposal more likely.
Instead of traditional stitching, many costumes are heat bonded, with plastic edges melted together. That construction leaves them fragile and hard to mend, and a large share end up in landfills after just one season.
How swaps and thrift programs work
Halloween costume swaps invite people to donate gently used outfits, then select something different without buying new. A sustainable fashion advocate launched the Ultimate Halloween Swap after realizing how much money and material go into costumes worn only a few hours.
Last year the effort collected hundreds of donations, including multiple boxes from a professional basketball team, and expanded this season to more locations, including college campuses. Universities are leaning in.
One campus thrift store stocks items gathered during student move-outs, from costumes to accessories, and hosts a pop-up each fall offering low-cost, used Halloween looks. This year’s racks featured everything from Austin Powers and kiwi outfits to a demon inspired by a hit TV series, plus matching platypus onesies that quickly found new owners.
Tips to reduce waste this Halloween
- Thrift or swap. Check local secondhand stores, Halloween costume swaps, or organize an exchange with classmates, neighbors, or friends.
- Shop your closet. Assemble a look from what you already own or alter older pieces for a fresh take.
- Rent or resell. Use platforms such as Facebook Marketplace, Depop, or Poshmark to rent, borrow, or buy secondhand.
- Choose materials wisely. If you need to purchase something new, look for plant-based fabrics like cotton or linen. Licensed products may cost more but can offer clearer information on sourcing and production.
- Share and lend. Ask friends for a loan and offer your own pieces in return to keep items in use longer.
Sustainability experts remind shoppers that a purchase carries all the environmental impacts of making that product. Avoiding single-use items, including one-and-done costumes, can save money and reduce pollution.
Organizers say Halloween costume swaps are just the start, with plans to expand similar exchanges to back-to-school, prom season, winter coats, and other times of peak consumption. Some advocates argue that broader shifts in habits, including how we shop for everyday clothing, matter as much as any holiday tradition, echoing calls seen in discussions of how technology and industry evolve, such as at the Asilomar conference.
