Well had them a week. Wore them during cloudy rainy days to see through the bad rain glare that's caused from rain water blowing up from asphalt under tires passing by me as I drove. Wore them at night, exclusively, to block all the different head light glare from on coming cars. Totally worked in both occasions here consistently.
That's about 2 weeks into owning them, the arm fell off. Picked them up off the shelf from the little carry bag provided...took them out...went towards my head...and ...