The new Oakley Line Miner XM Prizm takes the popular frame and scales it down to a medium size for riders who want a smaller fit. The Cylindrical Lens offers a high amount of peripheral vision and a close to your face fit. Oakley's Prizm Lens Technology delivers remarkably clear views that allow you to see the texture and contours in the snow much better than ever before. Triple Layer Face Foam keeps a snug seal across your face, while the F3 Anti-Fog Coating keeps your lenses fog-free, even in harsh conditions. If you want premier optics that allow you to see clearly in style, with a medium frame size, the Line Miner XM Prizm is the goggle for you Medium Fit, Prizm Lens Technology, Close to the Face Fit, Triple Layer Face Foam, F3 Anti-Fog Coating, Notches in the Temple to allow for most Prescription Eyewear, Race: No, Category: Adult, OTG: No, Special Feature: None, Helmet Compatible: Yes, Spare Lens Included: No, Goggle Ventilation: Medium, Goggle Lens Change: Moderate.