Automatic open, just press the button when you open the umbrella. Square shaped double canopy windproof design(air vented),durable fiberglass ribs and a sturdy fiberglass shaft offering a robust windproof system for maximum frame flexibility in stormy weather. Extra large canopy and arc size is 62 inches, the cover open diameter 44.5 inches. Umbrella length is 39.9 inches. large size umbrella, but it only weight 1.55 lbs, use available both for men and women. Skipproof on top end, Foam comfortable grip handle, with a adjustable strap carrying bag. 210T polyester pongee waterproof cover, work well for keep out the big rian, and it is lightweight and very fast to dry.