- High-density HDPE exterior fabric blocks up to 90% of UV rays, keeping outdoor spaces cooler and protecting your family from sun exposure. - The shading fabric is designed for outdoor use, offering durable, weather resistant performance for long lasting shade. - Size guidance: specified as width x length. For a more pronounced U shaped wave, choose a size slightly longer than the actual measured length. - Application areas: retractable pergola provides shade and privacy for porch, pavilion, terrace, backyard, deck, balcony, or other outdoor spaces so you can enjoy the outdoors comfortably all day. - Waveshaped canopy: U shaped wave sun sail design with movable wires. You can open and close the number of shade sails to adjust the shade area. - Performance and compatibility: easy to install with most retractable pergolas, built to withstand sun, wind and light rain for consistent shade. - Use scenarios: - Morning coffee or reading on the porch with comfortable, filtered shade - Outdoor meals and gatherings on the terrace or deck during sunny afternoons - Evening relaxation on the balcony with adjustable shade for optimal comfort