That's just good to wear when visibility is poor and reflections need to be mentioned individually are thus avoided, for a part eventually buys you so ;-).
during my last spectacle this category it has given me, because the spectacle is always in the car, broke the frame, without any action and I suspect that this is due to the variations in temperature in the passenger compartment happened.
In this spectacle I am even draufgesetzt twice by mistake. The part put away the nothing, without deformation, etc.
I can only recommend one hundred percent.