If you are looking for the most wind-resistant patio umbrella, then give serious consideration to one containing fiberglass ribs or pole. Fiberglass frames are strong,flexible and will withstand stronger winds more than other materials. It is also lightweight and easy to move around the patio. You will find that some aluminum, wood and steel frames use fiberglass for the ribs to provide additional protection against the wind. Fiberglass is resistant to salt and great for environments such as the beach or pools using salt as a part of their water treatment.