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Microfiber Washing Bag


The Guppyfriend Washing Bag is designed to reduce microfiber shedding and keep microplastic pollution out of our rivers and oceans. Microplastics are released when garments made of synthetic materials are machine washed. Studies have shown the Guppyfriend to be effective at reducing up to 54% of microfiber emissions into wastewater.


100% polyamide (fully recyclable)


Approximately 19.7" x 27.6" (50 cm x 70 cm)


  • Place clothing made of synthetic materials, such as activewear or swimwear, inside the Guppyfriend (works best when not too full).
  • Pull the zipper to shut bag.
  • After numerous washes, you may begin to see clumps of microfibers accumulate. Remove clumps and dispose in the trash.

Pro Tips

Your bag may discolor over time due to captured microfibers. However, depending on what you wash, it's also possible you may not see any obvious accumulation. Not to worry! Microfibers are smaller than the eyes can see, and the bag is still working to prevent shedding from happening.

Use the Guppyfriend Washing Bag along with the Cora Ball as an individual-level solution for reducing microfiber and microplastic shedding.