70% Polyester & 30% Pvc General to fit rectangular/oval patio table with 6-8 standard chairs size up to 126"(L)x74"(W). Measure your patio furniture dimensions before buying, and include chair clearance in your measurements. Made of 600D polyester canvas complex with waterproof backing. Tough enough to keep rain, hail, snow, dust, leaves and bird droppings away. Well-made structured air vents at two sides keep ventilation, prevent the cover from being blown away, also keep your furniture dry and in good condition. Plastic clips & heavy-duty elastic draw cords secured to table leg, especially during high winds and severe weather.