I live in Portugal by the sea, and at 8 AM the sun is directly in my eyes when I run, but with this visor, I have no trouble.  It actually shades enough so that direct sun misses my eyes.  Love that it has the velcro back, so I can get it tight enough that the sea breezes do not blow it off when I'm running.  Great product, I did cut off the 'roses' on the back though.