Up to 87% Shade and UV Resistant Gorilla Grip Shade Sails will transform your patio. The thick material is UV resistant and provides up to 87 percent shade helping you stay protected and comfortable in bright sunlight. Strong Rust Resistant Stainless Steel D-Rings Unlike other brands every corner of our sails feature extra strong rust-resistant stainless steel D rings for maximum durability. Tear-Resistant Seams and Curved Edge Design Designed from 185GSM high density polyethylene shade sail canopies are ultra durable. The double-layered reinforced seams are third party tested to be tear-resistant and the curved edge design helps enhance pull strength and prevent drooping. Breathable and Permeable Sail canopies allow cooling air through the permeable fabric so you can enjoy a light breeze and stay cool. To prevent drooping and pooling during rainfall sails allow water to pass through. Not recomm