Fiberglass frame 10 Ribs Wind-Resistant Solid Umbrella: The flexible structure of the folding umbrellas. made of fiberglass and high quality stainless steel. will not break under the effect of strong winds. The umbrella is also equipped with a vented double canopy. The frame can easily bounces back unbroken to its normal shape if the umbrella canopy flip inside out in strong large wind. Large Portable Golf Umbrella: Measures about 125 cm in diameter when open. It is large enough to shelter 2-3 people from the downpour. Foldable to 13.7 inch. small enough to slip in tote or travel bag. which is the business professional or for daily life. Auto Open/Close Non-Slip Comfort Handle: The auto open/close function allows for easy one-handed operation. Just push the button once to automatically open and press again to instantly fold the canopy closed in one second. Comfortably handle design for a good non-slip grip for windy rainy days. with embedded push-button mechanism. prevent your hand from being pinched. with wrist strap for easy carrying when going outside. Waterproof & Sunproof Fabric: The waterproof canopy uses pongee micro-weave fabric. This silk derived material is ultra waterproof with sun protection. On top of that. it`s light in weight and dry in fast. Suitable for Using in All Weather: Kalolary strong umbrella is designed for all weather. No matter how heavy rain. snow. or sunshine. this strong travel umbrella with 10 reinforced fiberglass ribs can hold up against all of them. It's enough to take this umbrella with you when you go out.