Behind the Product Featuring a traditional lens change system with a modern look and feel. The Anon Nesa Goggles combine a sleek, modern profile with a wide field of view, and the clarity of Perceive lens technology. A cylindrical lens and semi-frameless design maximize the field of view, while Perceive lens technology enhances contrast for the best possible definition and terrain recognition. They feature our exclusive magnetic face mask integration (MFIA(R)) for seamless coverage from snow, wind, and sun when used with our compatible hoods and face masks. They are over the glass compatible for wearing with eyeglasses and include two Perceive lenses plus a microfiber bag for storage and lens cleaning. Tech Specs Technical Features Magnetic Facemask Integration Bonus Lens Included PERCEIVE Lens Anon Cylindrical Lens Technology Fit Fits Over Glasses Standard