Stay cool and protected with the Coolaroo Triangle Shade Sail. Coolaroo-brand fabric is uniquely constructed to allow cool breezes to pass through and hot air to escape. This state-of-the-art material blocks up to 90 percent of the sun`s harmful UV r ays to keep you safely in the shade. No matter how hot it gets outside Coolaroo helps keep temperatures down making you more comfortable. This unique commercial-grade knitted fabric will be unaffected by moisture and natural temperature extremes and because it is knitted not woven it won`t tear or fray. You`ll have several colors to choose from for this triangular shade. Available sizes include 16 feet 5 inches 11 feet 10 inches and 9 feet 10 inches. All the hardware necessary for installation i s included