【99.9% Waterproof】- The shade sails have a splash-proof coating on the surface of the fabric and a double PU coating inside, the shade sail consists of three pieces of fabric. The seams of the fabric are treated with hot-pressed glue, prevent water from penetrating through the seams. Water pressure resistance: 400 mm HH -600 mm HH 【High Quality Guarantee】- The shade cloths are made of 180 g/㎡ polyester fabric. It has the following characteristics: high tensile strength, aging resistance, corrosion resistance and radiation resistance. Strong seams and durable 316 stainless steel D-rings at each corner. It blocks 98% of UV rays 【Practical and Aesthetic Design】- The curved design shows artistic beauty, Stretch shade sail better to avoid wrinkling and sagging of shade sail. All edges have double-thickness reinforced seams to prevent fraying and edge deformation. Due to the curved sides, the actual shaded area will be slightly reduced. Various colors and sizes are available 【Easy to