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Why Most "Recycled Polyester" Isn’t as Green as You Think

Why Most "Recycled Polyester" Isn’t as Green as You Think

In recent years, many brands have begun marketing recycled polyester (rPET) as a more sustainable alternative to virgin polyester. On the surface, this seems like a win for the environment—turning plastic bottles into clothing instead of letting them pile up in landfills. However, the reality is far more complicated.

The Myth of Recycled Polyester as a Sustainable Solution

Recycled polyester is often made from discarded plastic bottles that are melted down and spun into fibers. While this process does reduce landfill waste and requires less energy than producing virgin polyester, it does not address the core issues of synthetic fabrics:

  • Recycled polyester still sheds microplastics when washed, contributing to ocean pollution.

  • Even though it’s “recycled,” rPET clothing still takes centuries to decompose in landfills.

  • Many plastic bottles could have been recycled into new bottles instead of clothing. Turning them into garments removes them from the recycling loop and often leads to eventual landfill disposal.

The Hidden Problem with rPET Sourcing

Many brands greenwash their use of recycled polyester by claiming it dramatically reduces waste. However, in some cases, manufacturers intentionally produce plastic bottles just to recycle them into clothing. This practice, known as “bottle-to-fiber”, undermines the environmental benefits of using post-consumer waste.

A Better Alternative: Compostable and Natural Fibers

Instead of relying on synthetic solutions like recycled polyester, the best path forward is choosing truly biodegradable and compostable materials.

Why?

  • Natural fibers like organic cotton, hemp, and linen break down naturally without releasing plastic fibers into waterways.

  • Unlike polyester, these fabrics can be composted and reintegrated into the ecosystem.

  • Unlike plastic, plants can be regrown sustainably with proper agricultural practices.

What You Can Do

  • Avoid recycled polyester whenever possible. While it’s better than virgin polyester, it’s still a plastic-based material.

  • Choose clothing made from natural, compostable fibers. Organic cotton, hemp, and linen are great alternatives.

  • Support brands that prioritize plastic-free fashion. Look for brands (like ours!) that focus on truly sustainable materials.

  • Wash synthetic clothing less frequently and use a Guppyfriend bag or microplastic filter to reduce fiber shedding.

Recycled polyester may be marketed as an eco-friendly option, but it’s far from a perfect solution. The best way to reduce plastic waste in fashion is to move away from synthetic materials altogether and embrace compostable, plant-based clothing.

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