Aoodor 3 tier patio umbrella provides substantial air circulation which provides much more stability than 1 or 2 tier umbrellas under windy conditions. In summer months, the breathable 3 tier roof allows heat to pass through quickly. Wind resistance. 8.3 ft. height umbrella with 10 ft. shading area provides excellent space when entertaining friends, having dinners, relaxing outdoors, while enjoying the swimming pool, covering an outdoor market place, concert festivals, etc. The umbrella canopy is made of high quality 200gsm 100% polyester that has a PU coating and features water resistant and UV protection. A rust free steel frame provides durability and stability to keep the umbrella lasting for years.Metal crank mechanism is built into the pole controlling the umbrella to open and close smoothly. A button feature on the pole switches the angle of the umbrella for sun protection throughout the day.