ULTCOVER Waterproof 600D Polyester Square Hot Tub Cover Outdoor SPA Covers 85 x 85 inch

General to fit hot tub size up to 85(L)x 85(W). NOTE: This cover can not be used by itself without an insulated hard cover under it. | 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. | Heavy duty elastic cords allows adjustment for a tight and easier fit, especially during high winds and severe weather. | Full coverage design avoids the furniture exposure in the sun makes your hot tub always look like new.