A sail cover is a protective cover designed to shield a boat's sails from environmental elements when they are not in use. Made from durable, weather-resistant materials, it helps prevent damage from UV rays, rain, and dirt, extending the lifespan of the sails. Typically fitted over the mainsail or headsail, sail covers are easy to install and remove, making maintenance more convenient for boat owners. They come in various sizes and colors to match different types of boats, ensuring both functionality and aesthetic appeal.