Giro Manifest Goggle: Welcome to the wonderful world of versatility through innovation! The Manifest Goggle from Giro manifests effortless lens interchangeability with Giro’s Pop Top system – This revolutionary new system puts less stress on the lens and frame and makes swapping a lens as easy as cutting hot butter with a steak knife; just pop the top and slip in a new True Sight Spherical dual lens when conditions are all but predictable. Its True Sight Optics is brought to you via the visual genius of Carl Zeiss Vision; their innovation and know-how act as a conduit to which mountainous landscapes and treacherous terrains remain true to your eyes. Your eyes will thank you for manifestation of a snow goggle that puts no stress on them. Bravo! Its Super Fit Engineered, helmet-compatible frame is outfitted with triple face foam for superior comfort that lasts from first chair to last call. The Manifest Goggle is a complete package that includes a second lens for your viewing pleasure.