Anti-Fog Coating Every giro goggle lens features our anti-fog coating to keep your vision and riding experience on point. Double Layer Face Foam Double Face Foam is a two part system that gives you a plush contact layer against your face and a durable back layer that adheres to the goggle frame. Expansion View (EXV) Technology Perfected at Giro's test lab in Scotts Valley, California, this groundbreaking new frame design serves up unparalleled peripheral vision. we started with a helmet-compatible google, and then shaved down the frame rim and added frameless zones to optimize a massive spherical lens focused on the best posssible peripheral vision on a goggle. Injection-Molded Cylindrical Lenses Injection-molding a cylindrical lens helps define optics and minimize distortion that can occur in thermo-formed cylindrical lenses. OTG Friendly Engineered specifically for bespectacled skiers and snowboarders, goggles that are OTG (Over-The-Glasses) feature a finely crafted interior with extra volume to accomodate prescription frames comfortably. Increased air volume inside the goggle keeps your vision crisp, clear, and fog-free. Seamless Compatibility For optimal performance of both helmets and goggles, Giro products are designed to work together, ensuring a seamless interface between helmet and goggle for an exceptional fit and dependable, worry-free function. Giro Roam + Amber Scarlet Goggles