It is recommended to clean this mat only as described, as the mat is made of natural rubber to preserve the mat. The mat must not be washed in the washing machine.

Here's how you do it
After each use, wipe the mat with a damp cloth and allow the mat to air dry before rolling it up. Do not store in direct sunlight.

To clean the mat, you can mix water with a few drops of mild sulfo/soap. Use a hard-wrung cloth and clean the mat thoroughly. Now take a clean cloth with only lukewarm water and repeat the process. Make sure all the soap is off the mat. Allow the mat to dry completely before rolling it up.