UV Protection: Our shade sails provide up to 98% UV protection and 90% shade, helping to lower ambient temperatures and reduce cooling costs and energy consumption. Plus, you can save a lot of money if you design it right. Choose our products to enjoy a safer, more comfortable, more worry-free and more cost-effective outdoor experience Waterproof: Our shade sails are rated 400mm HH, which means they are somewhat water-resistant, but not completely waterproof. They are also breathable to provide fresh air circulation for your comfortable outdoor experience. Installation is safe and easy with ropes, and we recommend a 20-40 degree angle for maximum tension and rainwater runoff. EASY TO INSTALL: Our shade sails are easy to install. Simply measure and clear the mounting area, leaving 1.6-2 feet of space between the attachment point and the shade sail to accommodate hardware, hooks, or ropes. Curved sides provide increased tensile strength and prevent sagging, which can result in a slight