The I/O 7 Snow Goggles from Smith Optics sport medium-fit, rimless, black frames and feature interchangeable Blackout and Yellow Sensor Mirror lens options. For bright conditions, the Blackout lens keeps the glare at bay, while the Yellow Sensor Mirror lens improves visibility during low- or medium-light conditions. Featuring Tapered Lens Technology (TLT), a Porex filter, and 5X anti-fog technology, the I/O 7 ensures a high level of optical clarity and fog-free performance. These goggles integrate seamlessly with AirEvac helmets (sold separately) to allow air to continually vent through the helmet instead of getting caught in the goggle chamber, improving anti-fog performance. For optimal helmet compatibility, these goggles feature a triple layer of DriWix face foam and a system of dual-axis pivoting outriggers that transfer pressure evenly across the brow and nose for a complete seal and comfortable fit. The strap has a QuickFit System and clip-buckle for easy adjustment and removal. Use the included microfiber bag and spare lens sleeve for convenient storage. Smith Optics goggles are made in the USA.