A wind-resistant patio umbrella should have resilient ribs, a top vent and a stand with a heavy base. It should be easy to fold up in case of extreme winds.
Fiberglass is the strongest material for the ribs of an umbrella, and more ribs make umbrellas stronger and more stable. A vent in the umbrella allows wind to pass through the canvas instead of toppling or damaging the umbrella, and a heavy base helps keep the umbrella standing upright. To avoid damage, users should fold up and store patio umbrellas in extreme winds, even if the umbrella is sturdier than most.