The Oakley M Frame can trace its roots back to 1989, where the frame debuted as the "Mumbo". After a legal stoush with Australia's own Mambo clothing brand, the frame was hastily renamed the "M Frame" as a tongue-in-cheek dig at the lawyers who forced the change. The M Frame's form is a prototypical performance model, if you asked a kid to draw a pair of sunglasses it's likely this is what you'd essentially see.

Over the years the frame went through many refinements to the original recipe, receiving a substantial update in 2014, renamed the M2. With the update came a host of performance improvements, allowing the M2 to offer a wide field of vision whilst allowing ample ventilation to avoid sweat and fog build-up.

• O Matter™ frame
  
• Unobtainium® earsocks & nosepad
  
• Prizm® polarised lens w/ HDO® technology
  
• 12% light transmission
  
• Grey base lens colour
  
• Included dust bag
• Frame width: 132mm, Arm length: 121mm
• SKU: OO9343-2145