Designed for the modern-day marksman, these safety glasses meet ANSI safety standard with impact-resistant Prizm™ lenses featuring HDO® technology. With a focus on field of view, contrast/clarity and lens interchangeability, this advanced eyeshield delivers unprecedented performance. 166mm lens width; 14mm bridge width; 135mm temple length 100% UV protection Hydrophilic Unobtanium® nose pad provides a secure grip even under wet conditions Switchlock Quick Lens Exchange allows for lenses to be switched out easily, without placing fingerprints on lens surface Lens profile expands zone to a full 120º view and a lens curvature that extends the peripheral view Thin Stem technology enables compatibility with over-ear hearing protection High Definition Optics® (HDO) eliminates distortion for clearer, sharper, more accurate vision Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility O Matter™ Made in the USA Meets American National Standards Institute (ANSI) Z87.1 safety standards