Dark fabric provides heat reflection

KOOLBLACK™ Technology from Mermet enhances dark-colored yarn’s energy reflectivity by increasing its near infrared reflection (NIR). While conventional dark screen fabric provides superior view through and exceptional glare control, it absorbs the energy that is created. A dark screen fabric with KOOLBLACK enables the fabric to reflect more solar heat and absorb less energy, increasing energy efficiency of dark solar shade fabrics to levels comparable with light colors.

SOURCE 3G Mermet Corp.