["EXPANSION VIEW (EXV) TECHNOLOGY — Perfected at Giros test lab in Scotts Valley California this groundbreaking new Strap design serves up unparalleled peripheral vision. We started with a helmet-compatible goggle and then shaved down the Strap rim and added FRAMELESS zones to optimize a massive spherical lens focused on the best possible peripheral vision in a goggle." INJECTION-MOLDED CYLINDRICAL LENSES — Injection-molding a cylindrical lens helps refine 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 comfortably accommodate prescription frames. Increased air volume inside the goggle keeps your vision crisp clear and fog-free. TRIPLE-LAYER FACE FOAM - Triple Layer face foam with microfleece facing. 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.]