Polarized lenses eliminate glare for clearer vision & reduced eye fatigue without color distortion Injected front & temples with non-slip rubber trim keeps the frames on your head Built-in rubber nose pads lay flush to prevent hair snagging or pulling when wearing on your head Meets ANSI Z87.1 industrial standards for high-mass & high-velocity impact protection Water- & smudge-resistant coating makes the lenses easier to clean with clearer optics TR90 frames are durable, flexible, hypoallergenic & impact-resistant Auto-lock stop hinge allows the temples to lock securely in place for a sturdy fit WARNING: This product can expose you to chemicals including Nickel (Metallic) which is known to the State of California to cause cancer, and Bisphenol A (BPA) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov