Fabric: Sunbrella 100% Solution-dyed performance acrylic fabric offering a 5 year non-fading warranty engineered to withstand the elements with buit in UV protection. Operation: Patented Auto Tilt Feature, simply crank to open and tilt. No need to reach for the tilting button allowing you to easily and effortlessly adjust the tilt as needed keeping you shaded at all times of the day Construction: Entire frame is made from rust-free all aluminum with stainless steel hardware, 8 ribs for added canopy support, 1.5-inch diameter aluminum pole providing a stronger more durable frame, built-in wind vent and ties to close the umbrella totaling superior weather protection. SECURITY: Featuring a built-in wind vent and canopy ties to close the umbrella for superior weather protection. Optional base is not included and must be purchased separately