Alpha military goggle has passed the stringent US Army ballistics testing, so this goggle can take a beating while providing unparallelled protection. The goggle comes with 2 polycarbonate lenses; anti-fog smoked and anti-fog clear. Designed to fit well under ballistics helmet or without-perfect for law enforcement. Anti-microbial foam lines the frame ensuring an excellent seal, while ventilation is provided through the foam covered holes around the frame. RX insert sold separately.