The Oakley Jawbreaker (O09290) is the latest in high-performance sports shades with a full-shield lens maximizing coverage and visual field during sporty activities. It's made of lightweight, durable O Matter™ material. It has adjustable temples that are appropriate for helmet use, along with Switchlock™ lens-swap technology for easy lens changes. Inside, you’ll find Unobtainium™ nosepads and earsocks that grip better when you sweat. With Prizm™ lenses and HDO® optics, it boosts contrast and reduces distortion under intense light.