Uvex by Honeywell Genesis XC Safety Glasses, Black Frame with Silver Mirror Lens & Ultra-Dura Anti-Scratch Hardcoat (S3308) RX-READY: Optional Rx lens insert securely holds prescription lenses including bifocals, trifocals & progressives; easy lens replacement allows for multiple lens tints & extends eyewear life LENS TINTS FOR ANY TASK: Uvex lens tint applications include sun & glare reduction, fluorescent/halogen/sodium lamp low light areas, indoor/outdoor transition, welding and traffic signal recognition PERMANENT LENS COATINGS: Uvex lens coatings deliver long-lasting anti-fog & anti-scratch performance; permanent bonding to the lens prevents wash/wear off even after extended use or repeated cleanings SAFETY: Extended wraparound lens for up to 20% more cheek/side coverage than standard Genesis model; select tints meet military V0 ballistic impact standards (7X ANSI requirements); CSA Z94.3 approved COMFORT: Soft elastomer browguard diffuses impacts; soft flexible nose fingers reduce slippage and conform to almost any nasal profile; cushioned, adjustable temples & lens inclination for a custom fit