100% virgin wool: these slippers are made from virgin wool, the 3D knitting technique is cuddly soft. The breathable material provides pleasantly warm, dry feet Running like on clouds: the patented non-slip rubber sole has been part of our felt slippers since 999. Together with a midsole made of virgin wool, you have the feeling of walking barefoot Washable: these slippers can be easily washed at 30 °C in the washing machine. Please do not use a dryer or fabric softener Sustainability: not just one thought. Since everyone, we value gentle handling of resources. 90% of the water used as well as any wool residues use again