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No single metal could meet our requirements for low weight, high durability and just enough flex for a perfect fit. That's why it took five metal compounds, superheated and fused into a single alloy, to create C-5™ frame material. It's the backbone of A WIRE®, an optical instrument that gives you the unbeatable performance of HIGH DEFINITION OPTICS® (HDO®). That includes patented technology to unlock your peripheral view with wide-open clarity. And when sweat makes ordinary frames slip, our UNOBTAINIUM® temple sleeves actually increase grip.
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