Wool is a natural fiber that is similar to human hair. Each individual wool fiber is covered with a cuticle layer. Wetness or mechanical abrasion can make these fibers hook to each other which causes the wool to felt or shrink. To keep this from happening, clothing made from wool should be washed with a liquid detergent made specifically for wool in the wool cycle of your washing machine. We recommend the Nikwax Produkt Wool Wash.
Read the information on the care label. In this example, a wool wash cycle set at 30 °C is recommended.
Fill the washing machine and add your mild detergent in accordance with the product package directions. Close all buttons, snaps, zips or Velcro before washing. This keeps them from catching on other fibers and stretching out the garment.