UA Tuned™ Baseball lenses provide contrast enhancement to spot & track the ball more precisely Fully-adjustable UA ArmourGrip nose pads have a lasered engraving for ultimate comfort & stability Injected front & temples with non-slip rubber trim keeps the frames on your head TR90 frames are durable, flexible, hypoallergenic & impact-resistant Auto-lock stop hinge allows the temples to lock securely in place for a sturdy fit Water- & smudge-resistant coating makes the lenses easier to clean with clearer optics 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