Halloween ends but throwaway costumes leave lasting waste
Halloween costumes worn for one night can leave lasting plastic waste, with swaps, rentals and reuse offering ways to cut the impact.
- Single-use Halloween costumes, often made from cheap synthetic fabrics, contribute to a "fast-fashion" cycle of waste, with one study finding 83% of their material was plastic.
- Beyond ending up in landfills, washing these synthetic costumes releases microplastics into waterways, causing a lasting pollution problem.
- To combat this waste, alternatives such as costume swaps, donations, rentals, and repurposing old clothes are being encouraged.
Halloween costumes worn for just one night can leave a lasting plastic-waste problem after the October 31 celebrations. University of Michigan professor Shelie Miller says cheaply made synthetic outfits are often intended for brief use and can shed microplastics when washed.
In Thailand, some Halloween outfits cost 50–300 baht, according to Spring News, which describes a cycle of low-cost synthetic clothes bought for one occasion and then discarded. The pattern reflects the wider fast-fashion model of frequent purchases and brief use.
Synthetic fabrics can release microplastics into waterways
Synthetic clothing can release tiny plastic fibres during washing. Research at the University of Michigan identifies fibres in washing-machine wastewater as one route through which microplastics reach waterways, extending the pollution problem beyond the disposal of unwanted clothes.
Polyester, a common costume material, is itself a type of plastic. The Fairyland Trust’s 2019 survey of 324 Halloween clothing items offered by 19 major retailers found that 83% of the material in the sample was plastic.
The US Environmental Protection Agency’s 2018 textile waste data show that most discarded textiles went to landfill, with only a minority recycled. Those figures cover the broader textile waste stream, rather than Halloween costumes alone.
Miller also cited estimates that clothing accounts for 4–10% of global carbon emissions and textile dyeing for about 20% of industrial wastewater. Both estimates concern the wider industry, not the environmental footprint of Halloween alone.
Costume swaps and donations keep wearable outfits in use
Libraries Unlimited and Recycle Devon expanded their Halloween costume-swapping scheme to 22 libraries in Devon, England, in 2026, according to Devon County Council. The programme gives families a way to pass on unwanted outfits and find a costume without buying a new one.
Thailand’s Mirror Foundation accepts clothing in good condition for redistribution, providing an outlet for wearable garments that are no longer needed. Costume resale and rental offer other ways to extend the use of an outfit beyond a single event.
Reuse and rental offer alternatives to throwaway costumes
Local markets, online trading groups and second-hand shops provide channels for passing costumes on to new owners. Rental businesses can earn income from the same garment across several celebrations, following a circular-economy approach that keeps products and materials in use for longer.
Guidance published in 2023 on the website of Thailand’s Office of Natural Resources and Environmental Policy and Planning recommends adapting old clothes, keeping accessories for future celebrations and avoiding single-use plastics.
White fabric or an old bedsheet can become a ghost costume, while black clothing can be adapted into a witch’s outfit. Cardboard can be used for masks and armour, and glass bottles and boxes can become decorations instead of being discarded.
Event organisers can reduce single-use plastic decorations and set aside spaces for costume exchanges before celebrations begin. Food scraps can also be separated for composting, extending waste reduction beyond clothing and accessories.
Source: Spring News
