I'm not sure about this particular fabric, but there are materials which will reduce temperature below ambient (i.e. below air temperature), not just reduce rad

I'm not sure about this particular fabric, but there are materials which will reduce temperature below ambient (i.e. below air temperature), not just reduce radiative heating from the sun. You do this by exploiting the "cold resource" of space! See https://advances.sciencemag.org/content/5/10/eaat9480?intcmp=trendmd-adv https://advances.sciencemag.org/content/5/10/eaat9480?intcmp...