• A Guppyfriend microfiber laundry bag peeks out of its kraft paper branded packaging
  • A close up of the Guppyfriend wash bag packaging stamped with the words "your solution against microplastics"
  • The front of Guppyfriend microfiber wash bag packaging—the design incorporates a washing machine and the sea
  • The back of Guppyfriend packaging, which outlines the microfiber pollution problem and the advantages of using a microfiber washing bag to reduce ocean plastic pollution
  • A man puts a balled up yellow shirt into a Guppyfriend laundry bag to capture microfibers shed in the wash
  • A Guppyfriend wash bag filled with laundry and a sportswear peeking out; to the side sits a tennis ball
  • A diagram illustrating how microfiber shedding from laundry can end up in our food chain
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Guppyfriend

Microfiber Laundry Bag

Microfiber Laundry Bag

$35.00
$35.00
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Shipping calculated at checkout.

When we machine wash clothes made of synthetic materials like nylon and polyester, our laundry sheds microplastic fibers. You can use an in-drum solution like the GUPPYFRIEND washing bag to reduce microfiber shedding from laundry and prevent microplastics from entering our waterways.

The bag was tested over a period of three years by representatives of the outdoor and textile industry, retailers, universities, and the following scientific and independent institutes:

  • German Textile Research Center North-West, DTNW
  • Fraunhofer Institute for Environmental Safety and Energy Technology (UMSICHT)
  • UC Santa Barbara as part of the Patagonia research program

The results:

  1. The GUPPYFRIEND bag drastically reduced the number of fibers that broke off in the wash. Tests by the Fraunhofer Institute UMSICHT showed on average 79% with partly synthetic clothes and 86% with completely synthetic clothing.
  2. The plastic fibers that did break off in the wash were retained in the bag by over 90% in all tests, and thus did not pollute wastewater.

Materials

100% polyester (untreated, no dyes or additives). Fully recyclable. The bag itself does not shed microfibers because it is made of monofilaments (one endless thread that is more like a stable stick in structure rather than many loose threads).

Dimensions

Approximately 19.7" x 21.1"

Instructions

  • Place clothing made of synthetic materials, like activewear or swimwear, inside the GUPPYFRIEND bag (works best when not too full).
  • Pull the zipper to shut the bag. Add the bag to the rest of your load and run the washer.
  • Remove clothing to dry (do not put the bag inside the dryer).
  • After numerous washes, your bag might start to discolor due to captured microfibers. You may also see clumps of microfibers accumulate in the upper corners. Remove the clumps and dispose in the trash.

Pro Tips

If you don't see any obvious accumulation, don't worry! Many factors play a part, like the combination of materials in each load or even your washer model. Not to mention, microfibers are smaller than the eyes can see. The bag still works to prevent shedding from happening, even if you can't see it with the naked eye.

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