12 RIBS STURDY STRUCTURE- Windproof: This 12 ribs windproof umbrella has upgraded the material to high-quality resin-reinforced fiberglass and strong frame on the basis of traditional 6-10 ribs. It withstands winds up to 70 MPH, even in heavy rain and snow. The umbrella is also equipped with a fail-safe flip technology. The frame can easily bounces back unbroken to its normal shape if the umbrella canopy flip inside out in strong large wind. 46" WATERPROOF CANOPY - Fast Drying: Measured about 46 inch/118 cm when open. The umbrella is large enough to shelter 2 people from the downpour. The canopy is made of Teflon coating fabric, using the international leading waterproof technology. The rain can't soak through the fabric. The waterproof coating make it dry quickly and you could put this folding umbrella back into bag, briefcases, backpacks, travel luggage in short time after use. AUTO OPEN/CLOSE & ERGONOMIC HANDLE: The Auto open/close function allows for easy one-handed operation. Just push the button once to open and press again to instantly fold the canopy closed in one second. Ergonomically comfortable rubberized handle design for a good non-slip grip for windy rainy days, with wrist strap for easy carrying when going outside.