* The lenses of Oakley Asian Fit Sunglasses Black Frame Violet Iridium keep clear and never have oil, dust and other particles sticking on them. It was made with advanced optical features; Oakley Sunglasses offer users great comfort.* The Switchlock Technology of Oakley Asian Fit Sunglasses for an interchangeable lens style that makes you keep up with shifty light conditions and maximize performance in any environment.* Oakley Sunglasses are made with Unobtainium stem sleeves for a great fit, which adds grip with perspiration.* The Durable and comfortably lightweight O Matter frame material of Oakley Asian Fit Sunglasses improves protection while keeping a flexible fit.* Canada Oakley Sunglasses were made with impact protection that exceeds ANSI Z87.1 standards for high velocity and high mass impact resistance.* The Plutonite lens material of Oakley Sunglasses are made for 100% filtrating of all UVA, UVB, UVC and harmful blue light up to 400nm.