Solution-dyed acrylic fabric canopies feature a soil, stain and mildew resistant finish. The canopy may be cleaned while on the fully open umbrella frame. For easier reach, lay the open umbrella down on a clean surface so it’s standing on two ribs and the end of the pole. Brush off any loose dirt. Dampen the fabric by hosing it down. Prepare a solution of two capfuls of a mild, natural soap (not detergent) to one gallon of cold or lukewarm water (less than 100° F). Use a sponge or soft-bristle brush and allow the soap to soak in. Rinse thoroughly with clean water. Air dry.