This shade sail is made of UV-treated polyethylene that blocks up to 90% of UV rays. That's useful both in terms of limiting damage to your skin and as it relates to managing the temperature on hot summer days. It's also weather-resistant, mildew-resistant, and it comes with all of the necessary hardware to adjust the sail to fit your desired area perfectly and to make sure you get the right tension. You can also select from blue, green, and yellow colors to match your home or outdoor area.
Like we said - simple but useful. This is a really practical option for people who want something really easy and really affordable that can provide them with some much-needed shade in key areas. If you have any outdoor space that could benefit from sun or UV protection in any way, the 16 Foot Quadrilateral Sun Shade Canopy Sail with Hardware is about as convenient and cost-effective solution as you're likely to find.

The sail is large and a good value. It gives shade but still allows light through it. A note about the colors; they are VIVID. I bought a yellow and green one and they are brighter than they appear in the photos.
For the price you can't beat this large sun shade canopy. I bought it to cover a large concrete surfaced deck. Once installed it immediately and significantly dropped the temperature in the area.