Made of lightweight O Matter for all-day comfort, this dark grey frame lets you change lenses in seconds to optimize vision in any sport environment. Oakley/#39;s liquid infusion process eliminates the haze and distortion found with ordinary polarized lenses, while the semi-rimless design means there?s no frame rim to block downward view. This special edition Team USA style features white icons on blue stem segments. The Unobtainium earsocks are also blue. A white and red band of color has been added to the top edge of the frame for patriotic pride. The XLJ lens size provides extra coverage and is a performance favorite among athletes for its neutral transmission which maintains color perception.