What is the Guppyfriend made from?
Apart from the zipper the bag is entirely made of Polyamide 6.6. The material is untreated, undyed, and does not contain any additives. 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, just separate the cover with the zipper from the fabric to do so.

Does the Guppyfriend lose microfibers itself?
The mesh is made out of monofilaments, which are more like sticks than threads, and thus does not release fibers itself. On rare occasions, depending on the mechanical condition of your washing machine, the binding tape around the bag may release a few fibers. 

Does the Guppyfriend affect other garments in the washing machine?
No, you can do your laundry as you would without the washing bag. Continue to separate lights and darks.

Can Guppyfriend be used in the tumble dryer?
No. When there is no water in the bag, the material becomes statically charged and the microfibers will be able to move through the holes in the bag. We recommend hang drying your clothes wherever possible.