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. The CDI's Lateral Exchange System makes interchanging any of the three available lens colors quick and easy. Lenses available in: Clear, Smoke, Hi-Def Yellow Interchangeable 2.2mm high-impact Polycarbonate lenses Distortion-free optics & 100% UVA/UVB protection ESS ToughZone anti-scratch lens coatings Incredibly light, virtually-indestructible nylon frame No-Slip rubber temples & nosebridge retain tac...