Eight heavy duty fiberglass ribs for superior stability. Aluminum hub and housing. This umbrella will hold up against anything you throw at it; it has the benefits of both worlds. The two-section aluminum pole with a 0.
1 year color retention and corrosion resistance warranty on fabric. One of the key benefits to this umbrella is a three year warranty on the fiberglass ribs as opposed to your standard one year warranty. 11' Black Aluminum Market Patio Umbrella, Olefin White Recommend using protective cover. This umbrella also features Olefin fabrics, which are made with high durability synthetic Olefin fibers that offer improved fade resistance over lesser grade fabric materials like polyester and cotton.