PREMIUM OUTDOOR UMBRELLA COVER: 110"(Height) x 11.8"(Top) 31.9"(Middle) x 17.7"(Bottom). This waterproof offset umbrella cover fits up to 13ft diameter round or 11ft L square large garden cantilever/offset umbrellas.WATERPROOF UMBRELLA COVER: This offset umbrella cover is made of waterproof oxford, with PVC coating inside and a water-repellent surface, the water will slide down the cover surface. Suitable for umbrella protection on outdoor terraces. It can be used under severe conditions such as rain, snow, frost, and bird droppings. There will be no shrinkage, discoloration, deformation, or tearing.DURABLE STURDY ZIPPER: The umbrella covers for outdoor umbrellas have a sturdy zipper on the side and an adjustable drawstring at the bottom, which can improve safety and prevent being blown away by the wind. It is made of thick 420D Oxford, the internal coating and double seam edges prevent the umbrella cover from breaking and can be left outside all year round and provides full weather protection.STRONG ADAPTABLILITY: The patio umbrella cover is well-made, easy to assemble, and has strong adaptability. It can be placed outside all year round, waterproof, windproof, sun-proof and UV-proof, suitable for use in any bad weather.EASY TO USE: The cantilever umbrella cover with rope lock and heavy-duty anti-rust side zipper, suitable for most garden umbrellas, easy to disassemble and assemble, and easy to clean, just wipe with a damp cloth or rinse with water Just use the tube to make it dry in the sun, which is convenient for storage and next use.