Hdo is a collection of patented technologies that allow the industrial m frame to surpass ansi z87 1 optical standards including tests for clarity by maintaining visual sharpness at greater viewing distances refractive power by minimizing the affects of a common optical aberration that causes inferior lenses to magnify images like prescription lenses and prismatic power by minimizing.
Oakley si ballistic m frame 2 0 lenses.
The m frame 2 0 additionally meets mil spec mil prf 31013.
All lenses are made of pure plutonite a proprietary material that offers the highest level of optical clarity available in eyewear.
M frame lens medium sized to fit most average sized faces three dimensional contouring that matches the curvature of the eye and offers a huge field of vision 100 percent uv and blue light protection fits all ballistic m frame 2 0 glasses along with military issue ballistic m frame 11 138 and 11 105 fits si ballistic m frame 2 0.
Oakley si ballistic m frame 2 0 sunglasses.
Introduced in 2006 the tough oakley si ballistic m frame 2 0 tactical sunglasses were designed more for battle than for beauty.
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M frame 3 0 coverage is very slightly better than m frame 2 0 but all are more than adequate.
The most obvious change from the regular m frame is the thicker more rugged frame.
Benefits of the oakley m frame 2 0 strike replacement lens.
The oakley si ballistic m frame 2 0 surpasses ansi z87 1 industrial standards for high mass and high velocity impact protection.