High Quality Material We use high quality fiberglass for the tips and ribs, which is strong and flexible whilst not being so heavy that you hand fatigues. . Double Canopy ConstructionThe double-canopy design and hardened steel frame will ensure that your umbrella is virtually windproof. . FeatureThe double-canopy design and hardened steel frame will ensure that your umbrella is virtually windproof. The durable construction creates a vent during where wind can pass through, making the umbrella much easier to handle in harsh conditions. . FunctionThe double-canopy design and hardened steel frame will ensure that your umbrella is virtually mindproof. Wind will simply not break it. The double-canopy design creates a vent during where wind can pass through, making the umbrella much easier to handle in harsh conditions. . Great Choice with Acsergery a oversize canopy and heavy duty design, the golf umbrella is an ideal companion for golfers, the business professional or for daily life. .