GUPPYFRIEND™ Washing Bag - Stop MicroPlastics!

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The GUPPYFRIEND™ Washing Bag protects your synthetic garments and reduces the amount of microfibers that may enter rivers and oceans from washing. After washing your garments in GUPPYFRIEND, remove the microfibers from the bag and throw them away in the trash.

With each wash, countless plastic fibers from synthetic textiles are making their way from washing machines into rivers and oceans.
The Guppyfriend Washing Bag is a patented solution, that filters out the tiniest microfibers released from textiles during washing. The self-cleaning fabric bag is made of a specially designed micro-filter material. Simply collect the fibers and dispose them of properly.

Does the Guppyfriend Washing Bag affect other garments in the washing machine? 

No. Do your laundry as you would do it without the washing bag. For example, a dark-colored shirt inside the bag with whites outside the bag doesn’t make sense. The washing bag doesn’t change that. If so many fibers do not break in the first place, you will find less of the already tiny microfibers in the corners of the Gupyyfriend washing bag. However, the lifetime of the clothings are extended. 


 What is the Guppyfriend made of? Is the material recyclable?

Apart from the zipper the bag is entirely made of Polyamide 6.6. The material is untreated, undyed, and does not contain any additives. It’s pure and can even be used in a medical context. Recycled material doesn´t work (yet) for this kind of high-tech mesh. But the washing bag is designed in such a way that it can easily be recycled with identical materials at the end of its lifecycle: The whole bag – except the zipper – is made of a single material.

For the recycling process of your broken Guppyfriend Washing Bag we recommend that you use it for local recycling. Separate the cover with the zipper from the fabric.


At The Running Republic we know how important it is to feel good about what we wear even we run and our clothes feel so good, because of the tireless pattern work that was done when designing them and because they are made with high percentages of Lycra. That is why probably two, even three sizes, could be perfectly suitable for you.

Here you have our size guide and we want to give you one last tip: if you normally buy products from the leading American brand of the sports market, the size you buy of that brand is the size you should buy of The Running Republic: