Oakley’s Jawbreakers were specifically designed for cycling, so you can be confident knowing that these sunglasses provide some of the best protection available for your riding needs. The large lens has a tall profile for an increased field of view—even in the most tucked position. The frames have adjustable temples with three different lengths for fine-tuning helmet compatibility. The innovative frame design employs Oakley’s incredibly lightweight and strong O-Matter material, which delivers a premium fit with outstanding performance. Featuring Switchlock technology, the lower part of the frame opens for simple lens changes (extra lenses sold separately). The Plutonite lens features High Definition Optics for the highest level of optical clarity, and they filter 100% of all UV rays while meeting the highest impact protection standards. The ear and nose pieces are made of Oakley's Unobtainium, which increases its grip when it’s wet, so your glasses stay exactly where you want them.