High Quality Materials: Made of 100% brand new 185 GSM HDPE (high density polyethylene) material.Our sunshade sail is attached with DOUBLE layer webbing in each side and stainless steel D rings in corners to make the sun sail shades stronger and more durable 95% UV Blockage &Breathable Material Design: Provides 80%-85% shade and protects against 95% up to 98% harmful UV rays to make your patio privacy safe, cool and fabulous. Allows cooling breezes and light to pass through for better airy and comfortable space, allows rains to pass through, so there's no pooling water( So it is not waterproof) Resistant Sun Sail: The shade sail protects your children, flowers, plants and cars safe from exposuring under the sun by blocking up to 95% UV rays. significantly reduce the temperature and UV sunlight in shaded area during summer time, ideal for patio, swimming pool, balcony, carport etc Curve Edge Design: Kanagawa shade sails have the curves in the edges to set up tension through the sail. As the corners of the sail are tensioned, the edge curves try to straighten, in turn pulling the fabric tight. This design not only improve the pull strength, but also effectively prevent the shade sail from drooping Ideal Shade Solutions: Our Custom Size Rectangle sun shade sail canopy is widely used for a patio, carport, lawn, garden, pool, BBQ areas,pond, deck, kailyard, courtyard, backyard, dooryard, park, carport, pergola, sandbox, driveway or other outdoor occasions KANAGAWA shade sail block 98% of UV rays, using High Density 185GSM Polyethylene fabric. At the same time, it is sturdy and durable, with a normal use time of up to five years, and the installation is very simple, even a child can easily install it. Our fabrics are breathable and not waterproof, giving you the most comfortable experience. It is suitable for many scenes, and can be used for balcony, garden, courtyard, patio, etc.