Native Eyewear Ripp XP Sunglasses Polarized Crystal Carbonate Lenses: Optical quailty, impact-resistant lenses that block 100% of the harmful UV light and eliminate glare for sharp, clear vision with increased contrast and depth perception in any lighting condition Rhyno-Tuff Air Frames: A proprietary high-performance thermoplastic material that is extremely lightweight, yet durable enough to withstand high velocity collisions and temperature extremes Venting system: Exhaust vents incorporated in to the design framework to enhance airflow, which virtually eliminates fog and condensation and allows maximum ventilation while blocking extraneous incoming light Mastoid Temple Grip: This proprietary design feature ensures the temple ends hug the mastoid bone (behind your ears), providing a secure and comfortable fit Anti-Ocular Intrusion System: Designed to prevent your lenses from dangerously shooting toward your eyes in the event of a high velocity impact