Eye Safety Systems 740-0296 CDI High Adrenaline Sunglasses, Black The resilient, battle-hardened CDI sunglass has a long track record of saving eyes and lives in hostile situations. Following a series of comprehensive overhauls, the redesigned CDI has never been better. The ESS CDI's U.S. MIL SPEC high-impact lenses can be easily exchanged for quick adaptation to your environment. Its high-speed low-drag frame and shatter-resistant lenses make the CDI comfortable and cool enough for downtime yet functional and rugged enough for the battlefield. Medium fit. Eye Safety Systems 740-0296 CDI High Adrenaline Sunglasses, Black Features: New cam-hinge temples feature SmartTension engineering for enhanced retention and a more comfortable fit. New co-molded nosepiece and full-wrap temple sleeves feature advanced no-slip rubber that provides maximum slip resistance, even when moist. Redesigned strap attachment system provides more secure engagement of strap and frame. Now includes a zippered hard case and a micro-fiber pouch/cleaning cloth. Night-Vision Compatible 2.2mm Lenses Interchangeable Lenses ToughZone Lenses U.S. Mil Spec* ANSI Z87.1 Compliant* Rx Available* CE EN 166 U.S. Federal OSHA Compliant *