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Polycarbonate
Polycarbonate is preferred over glass for active sports because it
is impact-resistant, shatter-resistant, scratch-resistant, lightweight and
durable. Unlike glass, polycarbonate is flexible and bends, rather than
shatters, when struck. Numa’s lenses were tested to European ballistic
standards for high-impact resistance before they were adopted by the Swiss
SWAT teams as their standard issue eyewear. |
