Monterey Grill Cover made with Sunbrella Boat Cover Material Water, fade resistant, and breathable Sunbrella solution dyed acrylic fabric, boat cover material to resist damage from sunlight and mildew. 5 year warranty covers the fabric becoming unserviceable because of loss of color or strength from normal exposure conditions, including sunlight, mildew, rot and atmospheric chemicals. 1 year warranty on all other components. California Residents WARNING Cancer and Reproductive Harm - P65Warnings