High-Quality Material: This sun shade sail is made of 100% pure(HDPE) high-density polyethylene shading fabric, which has a good resistance and ductility. (The color presented under different light will be different),Durable Construction Design: Upgraded anti-aging and anti-fading performance, shade fabric with strong stitched seam and durable D-rings in each corner, the edges are curved (not straight)provides strong pulling resistance for preventing breakage when off-line.