Grip your face great but they don't last very long
I don't know if it's my face that's especially greasy, but these stay on my glasses for about 2-3 weeks and then they give up the ghost.  I guess it's a good thing that they ship in the quantity that they do, but it's kind of annoying when i find that I've had a pad that fell off my glasses stuck on my cheek all afternoon.
Rating: 3 stars