Revision Shadowstrike Replacement Lens Clear. INTERCHANGEABLE LENSES: A novel nosepiece mechanism makes changing out the polycarbonate dual-frame lenses and adapting your Glasses to the mission at hand quick and easy; BALLISTIC PROTECTION: Built to exceed stringent U.S. and international ballistic impact requirements for use in military and tactical operations; OCUMAX ANTI-FOG COATING: Tested under EN 166 standards Revisions OcuMax Plus is proven to last longer than competing anti-fog solutions by a factor of 10-20 times is chemical-resistant and prevents scratches streaks and smears; FLAWLESS OPTICS: Interchangeable optical grade polycarbonate lenses shield eyes from unexpected fragments provide 100percent protection from harmful UV-A B and C rays and ensure distortion-free vision for peak performance; Specifications for Revision Shadowstrike Replacement Lens: Manufacturer: Revision Quantity: 2 Features of Revision Shadowstrike Replacement Lens MIL-PRF-32432A clause 3.8.4.1 Ballistic fragmentation characteristics Class 1 spectacles; ANSI Z87.1-2015 clause 6 Impact-Rated Protector Requirements (Z87+); EN 166 clause 7.3.4 Protection against high speed particles at extremes of temperature (FT) Package Contents: Revision Shadowstrike Replacement Lens Revision 4-0750-0302: Shadowstrike Replacement Lens Clear