CORTEX is an easy-going, squared shape in a lightweight bio-plastic frame. It has a new and thin temple design with an ARNETTE logo, and comes in many playful color combinations.FRAME COLOR:BlackFRAME MATERIAL:Bio-Based InjectedAlternative materialLEARN MOREFRAME SHAPE:SquareLENS COLOR:Green PolarizedLENS MATERIAL:PolycarbonateMODEL CODE:AN4291 27539A 57-18