The Defiant Replacement Lens provides Z87+ ballistic protection and has been tested to MIL-PRF-32432 ballistic standards. Our lens shape accommodates both large and medium faces without sacrificing peripheral vision or ballistic coverage. Optimized for user fit, the unique lens and frame interface enhances the lens's ability to flex when worn. The 7 base lens is built for optimal clarity and light transmission and can be easily removed to help you keep up with changing conditions.