The perfect solution for providing UV protection during the hot summer months, Knitted Polypropylene Sun Shade Sails available at Tarp Surplus are equally as beautiful as they are resistant to the extreme weather. Available in both triangular and square shapes, Sun Shade Sails provide UV protection and comfort by offering as much as 90 percent sun block for a cooler temperature in any environment. Cool breezes pass through the fabric while remaining immune to the effects of moisture and extreme temperatures. The sail's knitted construction eliminates the threat of tearing and fraying. These shade sails will retain their vibrant look for many years thanks to the special manner in which they are manufactured. These breathable sails are made with hemmed edges and are resistant to acid and mildew. Check out the attractive selection of colors on these easy-to-clean sails that can be used indoors or out.