Hugo, Kalle, Greta and Mini in the washing machine?

Yes and no. It's similar to your favorite running shoes - it certainly doesn't get any better. We recommend trying first with a dry, soft brush, then with a sponge and dishwashing liquid - you can use the rough side. In our many tests, we have already removed bicycle chain oil, bird poop, ketchup and finger paints. If you do use the machine: please put your product in a tied cotton bag, max. 30 degrees, no fabric softener, no spinning.