Uvex Genesis XC Anti-Fog Lens safety Glasses Features: Extended wrap-around lens for extra cheek and extra side coverage (up to 20% more than the standard Genesis lens. Soft elastomer browguard diffuses and deflects impact while providing comfort at all contact point. Soft flexible fingers on the nose piece adjust and conform to almost any nasal profile to reduce slippage. Adjustable, ratcheting temples permit the lenses to be tilted away from the cheeks and allow wearer to modify the angle, ensuring customized fit and comfort. Cushioned temple tips offer all-day comfort. Economical and easy lens replacement system allows for multiple lens tints and extends the life of the eyewear. Optional Rx lens insert holds prescription lenses securely, and accommodates a variety of Rx needs.With a classic screw closure, it easily fits prescriptions ranging from +3.0 to -3.0 D and offers an economical option for workers who require vision correction. Made in the USA. Lens Features: Clear - General purpose with impact protection and maximum visibility. Uvextreme anti-fog coating performs under the most extreme conditions and will not wear off after repeated cleanings. It is permanently bonded to the lens and retains anti-scratch, anti-static and UV protection properties. Compliance: ANSI Z87.1-2010 certified and military V0 ballistic impact test (protection against impact energies 7x higher than ANSI requirements. Certified to meet CSA Z94.3 certified.