Outstanding lenses.  Easy to put on, sturdy and provide superb eye protection while driving.  I have transition lenses but due to the UV block of car windows they won't turn dark in the car.  The bright desert sun hurts my eyes.  These lenses are perfect, I can see well, my eyes no longer hurt while driving.  They flip up nicely.  I have four sets of them, so I have them prepositioned where I need them.  I highly recommend them.