Sur Last® covers are designed to be easy to maintain. They can be washed, or brushed off and rinsed. Proper care and cleaning is important to the life of all fabrics.
For normal care and cleaning:
Add two (2) ounces of mild soap (Woolite, Dreft, Ivory) to one (1) gallon of water which is less than 100 degrees Fahrenheit. Clean fabric with "soft bristle brush". Rinse thoroughly with cold water and air dry.
For stubborn stains:
Add maximum one (1) cup of bleach to one (1) gallon of water. Spray on lightly to the fabric "face" (non-coated side). Do not soak fabric. Prolonged exposure to harsh chemicals can damage the coating (coated side) of the fabric. Rinse immediately. Do not leave on for more than two (2) minutes.

Cleaning with harsh cleaners (such as bleach) will require a retreatment (like 303 High Tech Fabric Guard) for restoring water repellency.