Spare clear lenses manufactured by Wiley X as a replacement part for the XL-1 Advanced Comm series of ballistic glasses in case the original ones were lost, misplaced, or damaged.The lenses are extruded, cut, and heat formed from a shatterproof Selenite™ polycarbonate.They are furtherly layered in a scratch-resistant T-Shell™ coating for increased resistance to surface damage.The lens grants 89% light transmission, UVA/UVB protection, and natural color accuracy.Transparent lenses are best used in low and mid-light environments outdoors and indoors during the daytime and nighttime.Certificated and norms:MIL-PRF-32432A, ANSI Z.87.1, OSHA 1910.133(b)(1)(1).