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In the past few years, the optical industry has perfected the methods necessary to make frames out of Titanium. Titanium is a rare metal, is stronger than steel, lighter than aluminum, and has a greater tensile strength than nylon. Used in the Space Shuttle, the Stealth Fighter and artificial joints, titanium is a high technology metal.
For eyewear applications, the benefits of titanium are easily seen... the material is non-corrosive, which makes it hypo-allergenic (until now, individuals with reactions to metals could only wear plastic frames). As mentioned, titanium is also extraordinarily strong yet light- another ideal combination for a device which rests on the tender tissues of the nose and ears. Finally, it is incredibly hard to break a titanium frame. In fact, frames that "flex" (e.g., Flexon frames by Marchon), keep from breaking due to their titanium content.
"Flex" frames have become exceedingly popular for patients who take their glasses on and off frequently- as well as for those with rugged occupations and hobbies. The material which allows a "flex" frame to bend is nickel. The nickel content in "flex" frames adds the potential for corrosion, however, so individuals with skin reactions to metal and those wishing to use their frames around salt water should look for pure titanium frames.
Charmant, Inc., is the world's largest manufacturer of titanium frames. Their frames will never corrode and are among the lightest, strongest frames available. The Eyesite carries a vast selection of both pure titanium frames (by Charmant) and "Flexon Frames" (by Marchon). In fact, Flexon is our best selling line of eyewear. Prices start at $149 for pure titanium and $239 for Flexon frames.
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