With an award winning, breakthrough design, the Giro Contact Goggle with Bonus Lens makes it easier than ever before to instantly adapt to the constantly changing weather and light conditions of the mountains. Fast, accurate, and secure, the SnapShot lens interchange system works by simply pressing the shutter button down for quick lens removal, and then self locating magnets and a self locking mechanism ensure effortless on the fly deployment of the new lens. By shaving down the frame rim and adding frameless zones, Giro's Expansion View Technology optimizes the massive spherical lens by Zeiss for one of the best peripheral visions available in a goggle. Triple face foam ensures plush contact all day long, and always the right fit through its ability to contour to your face. Every lens filters out 100% of the harmful UV rays found on the hill, offers an anti fog coating for maximum clarity, and is attached to a frame that is compatible with any and all Giro helmets.