Compatible with all Giro helmets, the goggles feature anti-fog coating and triple-layer face foam for premium comfort. They are also equipped with an extra bonus lens for different lighting scenarios. Expansion View (EXV) technology - Enhanced peripheral visionCylindrical injection-moulded lensCompatible with all Giro helmetsTriple-layer face foam - Unparalleled comfortAnti-fog coatingOTG (over the glasses compatible) - wear them over your prescription frames Includes two lenses: 1 x sun (all conditions) lens, 1 x low-light lens