Superior Fabric: Our shade sail is made of 100% brand - new high - density polyethylene (180GSM HDPE) knitted fabric, featuring tear and abrasion resistance Sunlight Blocking: Effectively blocks up to 95% harmful UV rays, creating a cool and private space for you. Breathable fabric ensures air circulation and prevents rainwater from collecting Reinforced Structure: The reinforced edges with welt seams ensure structural stability. Equipped with durable D - rings, the shade sail can be easily secured wherever you need shade Stable and Wind - Resistant: The curved edges design enhances tension and stability, keeping the shade sail tightly in place. At the same time, this design prevents the center from sagging and ensuring long - lasting shading performance Versatile Shading: Customizable sunshade suitable for backyard deck, porch, pergola, pool, pond, courtyard, park, carport, sandbox, driveway, gardens and garages. The fabric has shrinkage, and the shrinkage tolerance is ±6 inches on each side This sail protects against up to 90% U*V rays, allowing breeze and rain to pass through, no more rain gathered on the fabric which will make this canopy more long-lasting than others.