Fit & Design The Frogskins style gets updated with color breaks Unobtainium(R) components, and a trigger stem design Manufactuered with BiO-Matter(TM) frame material made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources) Unobtainium(R) nosepads help provide retention with a no-slip grip and all-day comfort Regular - Universal fit Technology Available with Prizm(TM) Lens Technology designed to enhance color and contrast so you can see more detail Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions