Nesa Snow Goggles with Magnetic Face Mask Integration (MFI®). The Anon Nesa goggles combine a sleek, modern profile with a wide field of view and high-contrast Perceive lens technology. A cylindrical lens and partially frameless design offer a maximum field of view, while Perceive lens technology ensures the best possible contrast, sharpness and terrain recognition. Exclusive Magnetic Face Mask Integration (MFI®) provides seamless protection from snow, wind and sun when paired with compatible hoods and face masks. The Nesa can be worn over optical glasses and includes two Perceive lenses and a microfibre pouch for storage and glass cleaning.Perceive Sun Onyx LensPerceive lens provides high-contrast vision and terrain-defining clarity in just about any light condition. A hydrophobic and oleophobic coating provides unmatched smudge, scratch, and moisture resistance on the outer lens surface for clear optics and easy cleaning.Light transmission 6 % Category 1