Shade Structures are low maintenance, overhead canpoies that are an ideal, cost effective shade solution. The fabric is extremely durable, knitted, high-density polyethylene. UV stabilized so that it will not fade, mold, or rot. If torn, the lock stitch will prevent the canopy from unraveling. Provides shade and helps block out up to 95% of UV rays. Also allows hot air to escape through the roof. Choose from 3 sizes: • 12' x 20' (240 sq. ft) • 18' x 20' (360 sq. ft.) • 20' x 24' (480 sq. ft.) ...and 4 colors: • Red • Blue • Green • Yellow