6 Base Curvature - The base curvature corresponds to the curve of the lens. The higher the number, the higher the curve. 6 base styles have a “flatter” look. 8-9 base curves hug closer to the face.
These measurements include the width of the lens, the width of the bridge, the height of the lens and the length of the arms measured in millimeters.
For example, a 56-17-45-144 frame:
1) Lens Width - 56mm
2) Bridge Width - 17mm
3) Lens Height - 45mm
4) Arm Length - 144mm
O-Matter Frame Material - This lightweight synthetic is engineered for all-day comfort, shock absorption and durability against the punishment of environmental extremes.
Three-Point Fit - Oakley’s unique Three-Point Fit holds the lenses in precise optical alignment. Their frame materials balance durability and comfort with impact absorption for athletic competition, and these frame geometries maximize your peripheral vision.
Plutonite 100% UV Protection - Lightweight Plutonite® lens material offers superior comfort, clarity and protection against impact and ultraviolet radiation. Maintaining the proven safety characteristics of Oakley eye-wear, the impact-resistant material blocks 100% of all UVA, UVB, UVC and harmful blue light.
Unobtainium Grip - Thanks to Unobtainium, the frame actually grips better when you sweat. The textured Unobtainium ear and nose pads add comfort to your wearing experience.