Kookaburra ® Waterproof Woven Shade Sail. Shape & Size: Available as a Triangle, Square or Rectangle in various sizes. Colour: 26 colours - select from the drop down menu above. Material: High density polyester (160gsm) Kookaburra Shade Sails - Protection from the sun by the shade sail specialists Our top quality woven shade sails are the most effective sail shades for offering maximum UV protection.The ultra-tight weave of the fabric has been independently tested to UPF50+ making these sail shades near impenetrable by sunlight. More than 98% of harmful UV rays are blocked out as a result. In warmer climates, sail shades are designed with small holes in the weave to allow hot air to escape and to keep it from getting too warm underneath the sail. However, with the British climate generally cooler than many countries and more prone to showers, a tighter weave is ideal. You can enjoy maximum UV protection and shelter from the rain without worrying about being uncomfortably warm beneath your sail shade. UPF 50+ (Blocks over 98% of harmful UV rays - certified). Waterproof, ideal for unpredictable weather. High density polyester (160gsm UV stabilised). Machine washable at 40 degrees Celsius. The whole length of each side is strapped for tension. Grade 304 stainless steel D rings at each corner. Available in various colours and either square or triangular shapes - see all our sail shades listings. These can be used alone or in combination to shade the required area. Please note: Colours shown in the pictures are subject to light. You will only get one sail, not multiple as pictured. See "Surface Area" image above for full dimensions. The image above of our surface area guide shows the actual dimensions of the shade sails more clearly. Due to the nature of the sail, the edges curve when installed so that will alter the surface area covered. If you're looking to cover a specific sized area, please bear this in mind. Fixing Kits for Triangle or Square Sails.