This shade sail is perfect for our patio. It will be wrinkled when you first open but straighten out fast once you hang and stretch in your desired area. You will need some kind of eyebolt on the object you are hanging it from and rope. It is better to measure, order a little smaller and use the rope to adjust and stretch this shade sail.  I like the breathability of the fabric and material appears to be made of a nice outdoor fabric that will withstand the weather.