Oakley Chainlink Inspired by our popular Crosslink™ Rx frame, Chainlink™ is an active lifestyle sunglass for those who play hard and want original style for life beyond sports. The lightweight O Matter® frame material offers premium comfort while our Three-Point Fit retains the lenses in precise optical alignment. Features & Technology: IMPACT PROTECTION 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. BLACK IRIDIUM POLARIZED Light Transmission: 9% Light Conditions: BRIGHT LIGHT Base Lens Color: GREY Information Notice: 3 RED IRIDIUM POLARIZED Light Transmission: 18% Light Conditions: BRIGHT LIGHT Base Lens Color: ROSE Information Notice: 2 PRIZM BLACK Light Transmission: 11% Light Conditions: BRIGHT LIGHT Base Lens Color: GREY Information Notice: 3 Size & Fit: Frames are measured in millimeters. We’ve included this information for each of our frames to help you estimate how they’ll fit your face. Size: L (133mm) 1 Lens Height: 38 mm 2 Frame Width: 133 mm 3 Arm Length: 138 mm 4 Lens Height: 57 mm 5 Bridge Width: 17 mm NOTE: Measurements listed intended for customer use only. Not intended to be used by opticians to fill prescriptions. Fit Options: Regular: A medium lens front designed for those who prefer to cover an average portion of the face. High Bridge Fit: Offers a more secure and comfortable fit for those with a high nose bridge and lower cheekbones. A good choice if the bridge of your nose is above the level of your pupils.