Frogskins(TM) is back, bolder and larger than ever, with unmistakable Oakley vibes. The XL frame delivers the classic look from the '80s, with cutting-edge technological features, now engineered to fit larger heads. Design: Unobtainium(R) Nosepad: Unobtanium is the first innovative material patented by Oakley to ensure maximum comfort by increasing grip with perspiration and keeping the frame in place without slipping O-Matter(TM) Frame: Oakley's injection molded thermoplastic frame material provides improved strength and flexibility over traditional acetate, andis built to withstand from shifting or deforming over time Additional Details Bridge and nosepad: Universal Fit