Rectangle Sun Shade Sail Canopy, Commercial Grade, 14 Sizes, 7 ColorsVIRGIN, UV STABLIZED COMPOUND & THICK MATERIAL. The only sun shade sail on the market made of 190 GSM 100% virgin (Non recycled) HDPE material. Our virgin HDPE fabric has gone through 20000 hours of laboratory UV testing and is proven to be 70% more durable compared to recycled HDPE under sun exposure. Our fabric has been treated with a UV stabilized compound, preventing shade sails from drying out, tearing and fading, significantly extend the