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Regular price $34.95 USD
Regular price Sale price $34.95 USD
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Upgrade your sustainable laundry game with the GUPPYFRIEND washing bag to prevent ~80-100% of microplastic and microfiber shedding from your clothes from polluting our waterways!

Synthetic textiles (e.g. nylon, polyester, elastane, etc.) lose microplastics, especially in your washing machine. The particles ultimately end up in rivers and oceans and harm nature and our health.

The GUPPYFRIEND washing bag is scientifically proven by multiple institutions to reduce fiber shedding during washing thereby protecting your clothes, and it reliably filters microplastic fibers out before they pollute the water. Thumbs up! That’s good for you, your clothes and the environment.

- Made of high-tech material that does not shed itself

Dimensions: 8″ x 4″ x 2″ (20.3 x 10.2 x 5.1 cm)


100% polyamide 6.6

About the Brand

Some time ago, a marine biologist and environmental activist told us about a study. The results were unambiguous: with every wash, tiny plastic fibers from our textiles find their way from washing machines into the wastewater, polluting rivers, lakes, oceans, and soils on an unimaginable scale.

We set out on a mission to stop microplastics from ending up in our environment.

The Guppyfriend Washing Bag is the first step. It makes the microplastic problem visible, communicates it, and makes it tangible for every household. It is an easy to use and pragmatic solution, allowing everyone to do their bit to protect nature.
Based on our own research and development experience, and through scientific findings from our cooperation with universities, research groups, industry partners, and independent laboratories, we develop ideas, initial prototypes, and - in the best cases - effective solutions against microplastic pollution.

With the sales of the Guppyfriend Washing Bags, we support the non-profit organization STOP! Micro Waste. Knowledge and understanding about the sources and consequences of microplastic pollution are the prerequisites for change. STOP! Micro Waste raises awareness about the causes and the issue and provides information to schools and educational institutions on how to keep plastic out of nature.

Guppyfriend is part of LANGBRETT. At LANGBRETT, we produce fair, local, and holistically sustainable clothing and footwear without any compromises. We avoid plastic and chemicals, use natural materials as well as chrome-free leather and develop microplastic-free alternatives. We only produce as much as we sell in a circular production: Old shoes become new ones. We have been producing this way even before it was called circular economy.

Shipping & Returns

Worry-free shipping - all orders are tracked and insured and will be shipped either via USPS or UPS. 

Please allow up to 3 business days to receive your shipping confirmation and order tracking number.

Free 21-day returns & exchanges* (return/exchange request must be initiated within 14 days of delivery and postmarked within 21 days of original delivery).

*Click here to read more about our shipping and returns policies.

Care Instructions

Instructions for use:
Fill to about ⅔ full so that the textiles can easily move around in the bag
Add other (non-synthetic) garments to the machine or a second filled Guppyfriend to avoid imbalance
Wash cold or warm with 104F / 40°c maximum
Use liquid and natural detergents without synthetics
Remove coarse dirt and pet hair before washing
Close the zipper all the way
Please do not
Rinse under running water. The collected microplastic fibers would be washed into the environment
Wash with sharp-edged objects to avoid damaging the material
Iron your bag. This can damage the filter material (the crumpled surface is not a problem)
Use in the tumble dryer. It can damage the material and broken fibers can get out of the bag
Hang/dry in direct sunlight to avoid damaging the materials

Country of origin


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