[header] How to protect outdoor furniture [title] Remove fabric. [step] If your cushions have removable fabric, throw them in the wash. Follow the manufacturer's instructions carefully, and allow them to air dry completely before inserting the cushion back inside. 
If your cushions have a non-removable cover, you'll have to use another method if you want to clean them. [substeps] For cushions with non-removable fabric, consider purchasing slip covers for protection.