Care Instructions Care Info: You've put a lot of care into choosing your furnishings. And with continued care at home, they should share your address for many years to come. Now for your owner's manual… 6' Round Sunbrella ® Marine Umbrella Cover Outdoor fabric is mold, mildew, fade and rot resistant. Cover or store indoors during the winter and/or extreme weather. Wash cushions/umbrella covers with mild soap and water; air dry. We recommend the use of our outdoor furniture covers.