The washing bag against microplastic Synthetic clothing often sheds microscopic fibres, so-called microplastic, that then enters the wastewater system. But there’s a solution to prevent this: Guppyfriend. Use this washing bag for your clothes made of synthetic materials, such as polyester or polyamide. It will reduce fibre shedding considerably and collect the particles that still come off. The new Guppyfriend washing bag is made of a polyester filament that does not shed microplastic itself, but can be recycled. With Guppyfriend, you will protect your clothes as well as the environment. Guppyfriend washing bag