Series PW35/41/4400:

Nine colors are available in three densities.  On the left is an example of the three densities of the Greystone color.  Openness factor (OF) is defined as the amount of light the fabric allows through; therefore, a 5% OF would block 95% of direct sunlight.  Detailed information as to solar-optical properties of these fabrics is at the bottom of this page.