To preserve the quality of the virgin wool in the long term, the wool rectangular coat should ideally only be aired out or, in case of heavy soiling, brushed with a clothes brush from the collar to the hem. If washing is necessary, gentle hand washing with lukewarm water and a special wool detergent is recommended, taking care to avoid vigorous rubbing or wringing. To dry, the coat should be laid flat on a surface to prevent deformation and must never be tumble dried or exposed to direct sunlight.