【99.9% Waterproof】- The shade sails have splash-proof coating on the surface of the fabric and double PU coating inside, the shade sail consists of two pieces of fabric. The seams of the fabric are treated with hot-pressed glue, prevent water from penetrating through the seams. Water pressure resistance: 400mm HH -600mm HH 【High Quality Guarantee】- The shade cloth is made of 160g/㎡ polyester fabric. It has the characteristics of high tensile strength, aging resistance, corrosion resistance and radiation resistance. Strong seams and durable 304 stainless steel D-rings at each corner. It blocks 98% of UV rays 【Practical and Aesthetic Design】- Curved design shows artistic beauty, Stretch shade cloth better to avoid creases and sagging of shade cloth. All edges have double-thick reinforced seams to prevent fraying and edge warping. Due to the curved sides, the actual shaded area will be slightly reduced. Various colors and sizes are available 【Easy to Install】- The measurement is taken