| 11' Octagon Acrylic Cocoa Umbrella - No Valance 11' Octagon Acrylic Cocoa Umbrella - No Valance to your patio as well as effortless operation. The 11’ octagon canopy provides a large area of shade. A single wind vent at the top of the canopy facilitates airflow, allowing air to escape freely and preventing the umbrella from inverting during windy days. |