EyeSights patented design is engineered to withstand the rigorous requirements of the ANSI Z87.1-2003 high impact standard. To meet ANSI Z87.1-2003 impact standard, the lenses must remain seated in the eyewear frame when impacted by a steel projectile moving at an extremely high velocity. To insure proper eye protection, the EyeSights lens system is designed to be very secure in the frame. When changing lenses, you may experience some difficulty due to the safety rated lens mounting system. If you experience any difficulty in changing lenses, please contact customer service at 800.548.0558 for additional assistance and technical questions.
