Shade sails are a stylish contemporary and effective shade solution that fits most any outdoor living space. The variety of colors, shapes and sizes provide endless combinations to compliment and decor and create beautiful "skyscapes" They provide great protection against UVA and UVB rays, allowing the heat and humidity to escape while allowing filtered sunlight in. Heat and glare are significantly reduced making outdoor living spaces more enjoyable while providing greater shading area and more stability than umbrellas and gazebos. These custom shade sails are made with a specialized lock stitch knit for more air movement and better channeling of cooling breezeways and are constructed to block up to 95-percent of harmful UV sun rays. The original Coolaroo fabric is fade resistant and will not mold or mildew and is guaranteed for 10 years against any damage caused by ultraviolet exposure. Shade sail fabric may be cleaned at any time using a solution of mild detergent and water. Let the solution stand on the fabric for 10 minutes and rinse thoroughly with water. Hardware is sold separately, and is optional but highly recommended for the installation of the shade sail.