The Hedgehog Umbrella is an unrivaled masterpiece of engineering. The frame's backbone is constructed of dual strand carbon fiber rods fused with ballistic grade polycarbonate joints setting the highest strength to weight ratio in the umbrella industry. Using proven automotive technology, the umbrella incorporates a dynamic rib suspension system to combat even the most chaotic winds and prevents the umbrella from flipping inside out. This patented mechanism allows the umbrella to withstand wind speeds of over 70 miles per hour. Coverage - diameter 47 in (arc diam); 41 in (straight-diam) Closed length - 13 inches. Weight - 14 oz. Frame system - Carbon fiber frame with rib suspension technology Fabric - 210 thread-count Water Repellent Pongee fabric Warranty - Lifetime Manufacturer guarantee