We are working on functional fabric and mesh that lose fewer microfibers over their lifetimes. Other solutions besides the washing bag need to follow. Now. Not in 5 years. But it’s not only the industry that has to provide solutions. It’s also us: Buy better and less, wash only if really necessary, substitute synthetic fibers with (environmentally sustainable) wool or cotton, etc.
It’s not realistic for everybody to stop wearing synthetic fibers, but it already helps if customers are aware of alternatives.