About Oakley SI M Frame Lens
The Oakley SI M frame lens is a favorite among military personnel owing to its amazing protective abilities not only from harmful rays from the sun, but from high-mass impact as well. This premium lens series from the Oakley brand has surpassed the ANSI Z87.1 high-mass impact test. To pass the ANSI Z87.1 test, the lens must be able to withstand the impact of a 500-gram metal spike dropped from a height of four feet and no part of the lens or the frame should fly out at impact. The Oakley SI M frame lenses are made from a unique material called Plutonite, which is able to filter out 100 percent of UVA, UVB, UVC, and blue light for up to 400nm. What makes this Oakley lens series better is that despite its high-wrap design, the peripheral vision remains sharp and does not distort. The wide selection of lenses offered on eBay is available in clear as well as in different tints such as persimmon and grey Oakley M polarized frame lenses and the ultra-cool Oakley M Fire frame lenses are also available.