Material: our rectangle shade sail fabric is made of woven HDPE ( High Density Polyethylene), corner D rings are made of stainless steel, which are attached to the heavy duty white webbing. Note, this style is not waterproof Functionality: water permeable and breathable, allowing water and air to pass through regardless of the weather; and blocks up to 95% of harmful UV rays and sunlight, significantly lowering temperatures by at least 10–15 degrees Custom Size: we have a large selection of custom sized shade sails to meet all your requirements, please measure your venue accurately before purchasing; Shade sails may vary due to manual measurements, but the area of ​​the fabric is constant Styling: rectangle shape, multiple colours to choose from; Shade sails don’t just provide shade, they are also a versatile decorative piece that can integrate with your existing design and elevate your outdoor space Wildly Uses: with the proper hardware kits, sun shade sails can be attached to almost any structure such as poles, trees, wall, roof, etc. Applied for the patio, carport, pergola, tent, pool, yard, even window