What kind of lens material is the best choice for frameless eyeglasses?

[discount eyeglasses]

I am going to buy a pair of rimless eyeglasses recently, but the problem now is that I don't know what kind of lens material should I choose, What about ordinary CR 39 lenses? The lenses can be easily get bent up by some pressure. Waiting for your kind answer!

[glasses cheap]

in my opinion, PC lenses are light and durable, buy they provide lower transmissivity, thus kids may feel uncomfortable to wear them, together plastic lenses are easier to be scratched. if u like rimless frame, PC is best choice.

[glasses cheap]

as we know, rimless eyeglasses frames can show your beautiful eyes and cheekbones perfectly, and sometimes you may even feel you are wearing nothing at all as they are light and comfortable to wear. i like and still buy it again and again.