Do recycled polyester clothes shed more microplastics than regular polyester?

What's actually in it

Recycled polyester is still polyester. It is plastic fiber made from PET bottles, old textiles, or other polyester waste. Mechanical recycling can shorten and weaken fibers, which can make them shed more during wear and washing.

This matters most for soft items used often, such as baby clothes, pajamas, blankets, fleece, and playroom textiles. These items rub against skin, shed lint, and add fibers to laundry water and house dust.

What the research says

A 2026 Environmental Science & Technology study tested fabrics with 30% mechanically recycled polyester. Once-recycled polyester shed about 1.4x as many microplastic fibers as virgin polyester during laundering. Polyester recycled twice shed about 4.3x more, and polyester recycled 3 times shed about 6.2x more.

A 2022 Science of the Total Environment review identified laundry wastewater as a major source of textile microfibers in aquatic environments and noted that natural fabrics carry less plastic-fiber burden than synthetic materials.

Recycling can still reduce waste. But recycled polyester is not the same as cotton, wool, linen, or bamboo. If the goal is lower plastic fiber shedding, fiber type matters.

What to do at home

For baby clothes and soft nursery items, choose organic cotton, wool, or bamboo when you can. Wash synthetic fleece less often, use full loads, clean lint filters, and avoid buying recycled polyester just because the label sounds better.