High-density polyethylene professional-grade sun-shading fabric, up to 98% UV protection, 90% shading rate, unprecedentedly enhanced shading and heat insulation effect, even in the hot summer, the temperature under the sun shade sail can be significantly reduced, providing a cool environment for you and your family. Our sun covers have undergone a series of professional tests: excellent air permeability to allow cooling breezes and light to pass through for better airy and comfortable space; excellent water permeability, which can allows rains to pass through, so there's no pooling water( So it is NOT WATERPROOF); Excellent flexibility, it will not cause surface damage under severe weather such as strong wind and snow. 【Durable Construction Design】 Upgraded anti-aging and anti-fading performance, shade fabric with strong stitched seam and durable stainless steel D-rings in each corner, the edges are curved (not straight)provides strong pulling resistance for preventing breakage when off-line. Supports cleaning with mild detergent and water, won't fade or leave stains, you can reuse it without often purchases. 【Widely Used in Life】Our rectangular shade sail can be used in courtyards, lawns, gardens, backyards, swimming pools, decks, courtyards, parks, parking lots or any other outdoor areas.