We recommend cleaning the Junior Nylon with a cloth with lukewarm water and neutral soap. This will remove most stains. Stubborn dirt can be removed with HG detergent or Mellerud for outdoor furniture (without bleach). It’s available in various hardware stores.
The cover of the Stonewashed Original can be machinewashed inside out with a closed zipper at 30 degrees. Note that the Stonewashed sleeve can only be washed with detergent without bleach!