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Real glass? How are they for impact?



No better than 'real' skull, I'm sure.

I agree with your concern. There was a time when all industrial, safety eyewear was glass - sure it was supposed to be shatter resistant (and perhaps was ?)and was the only means to make eye wear that was suitable for clear vision. But plastics have come a long, long way in the ability to supply optical grade clarity, impact resistance, scratch resistance and perhaps most important to the user - light weight. Just my opinion, but I'll no longer own or wear 'glass' glasses for any purpose.

2004 Triumph Speedmaster (J Lo) 2006 Yamaha Stratoliner (Adele)