To preserve the shape and material properties of the "Authentic Wool & Cotton Bonnet" in the long term, gentle hand washing at a maximum of 30 degrees Celsius is recommended. Use a mild wool detergent and avoid fabric softener, rubbing, or wringing. After washing, the bonnet should not be hung up, but carefully rolled in a towel to absorb excess water and then air-dried flat. Since wool has natural self-cleaning properties, frequent airing in fresh air is often sufficient to remove odors and protect the fibers.