Star Brite Sea-Safe Waterproofing Spray (22-Ounce) Water-based formula restores water repellency to marine fabrics, boat covers & bimini tops Unique formula is lake-safe; can be applied while boat is in or near the water Will not dry out fabric or affect "breathability" Ideal for use on foul weather gear, tents, tarps and other outdoor gear Unique biodegradable bottle helps reduce landfill overcrowding