Shatterproof polycarbonate lenses for maximum protection UV400 lens filters eliminate the harmful UV rays of the sun Scratch resistant coatings protect the lenses from daily wear and tear Stylish & functional wrap around design provides a superior and natural air flow Birdz Eyewear Blackbird Sport Motorcycle Riding Sunglasses The aggressive styling of the BlackBird and the larger side temples provide great protection from all the wind and debris the ride may throw at you while the bold frame design lets you ride in fashionable comfort