Giro: Seek and destroy in the Blok™, a cylindrical VIVID Lens goggle that celebrates retro style while providing excellent clarity, thanks to its Optics by ZEISS®. SEEK AND DESTROYThe Blok is a classic, retro-style goggle that boasts impressive under-the-hood technology, making it a versatile, go-anywhere option that works as good as it looks. These looks are enhanced for 2019 with the durable and fog-minimizing EVAK vent technology. The Blok combines a wide, EXV field of view with the outstanding optics of a cylindrical VIVID lens with Optics by ZEISS.FEATURESEVAK Vent Technology uses a new foam made from an ultra-durable, non-absorbent material. EVAK vents minimize the chance of fogging by releasing moisture while simultaneously creating a barrier from the elements.EXV frame design – Expansion View Technology creates an unparalleled field of view by eliminating and tapering material from the frame to optimize a massive sperical lens and yield maxiumum peripheral vision.Injection-molded cylindrical VIVID lenses with Optics by ZEISS – Injection-molding a cylindrical lens helps refine optics and minimize distortion that can occur in thermo-formed cylindrical lenses.Triple-layer face foam with microfleece facingAnti-fog coatingSeamless Compatibility with all Giro helmets – 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 functionOTG friendly KEY FEATURESInjection-molded cylindrical VIVID lenseswith Optics by ZEISS®EXV Expansion View TechnologyEVAK Vent TechnologyTriple layer face foam with microfleece facing