Mirror coating offers improved sun protection, durability & scratch resistance|Injected front & temples with rubber co-injected tip helps keep the frames on your head|Built-in rubber nose pads lay flush to prevent hair snagging or pulling when wearing 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|Adjustable temples auto-form around your head for a gentle grip & custom fit|All UA Eyewear Protects against 100% of Harmful UV A/B Rays|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