Maybe you live in a state where summers are hot, so you need an umbrella cover to help keep the umbrella from color fading and molding. You may live in a state with long winters, so you need an umbrella cover to help the umbrella survive the cold, harsh winters. Then you need a patio deck umbrella cover!" The 600d Oxford fabric represents its superior waterproof properties, the PVC coating protects the umbrella from high temperatures. If there is heavy rain, there is no need to worry, as the raindrops will slide right off the canopy. The fiberglass pole helps you fit the umbrella easily without moving the ladder. At the bottom of the umbrella, a buckle and a toggle fasten the umbrella to protect your outdoor umbrella from all directions.