Oakley Sunglasses Holbrook Mix Steel Prizm Sapphire Iridium Polarised OO9384-1057 is a steel frame with a prizm sapphire iridium polarised lens and is designed for men. It is a large style with a 57mm lens diameter. The bridge size for this model is 17mm and the side length is 138mm. This adult designer model is a metal & plastic, full rimmed frame with a Square shape.