The 16:9 has less frame, more lens. It offers all the advantages of the BIG PICTURE, but in a somewhat smaller package – although the field of vision is only minimally reduced. Its classical form, combined with the finest technical features, makes it a timeless “always & everywhere” goggle that fits every face shape. All 16:9+ are delivered with interchangeable lenses that are easy to swap in & out. The Red Plasma mirror lens is complimented by a low light lens, with easy changing. Marker has developed the revolutionary NMT OPTICS coating. It works similarly to the extra membrane or third eyelid that many animals have to provide extra protection to their eyes. NMT OPTICS (Nictitating Membrane Technology) have an extremely scratch-resistant surface that always supplies the best possible clarity. It prevents water, grease, or dust from sticking, & moisture wicks away immediately. Fingerprints, dust & sweat have no surface to cling to, & are easy to remove. Our NMT-coated lenses offer crystal-clear visibility for years. MARKER DUAL BIONOMIC lenses are designed in a double-lens construction with an integrated thermal blocker. All lenses are oriented to the curvature of the human eye to ensure that objects seen through the goggles are accurately represented & undistorted. Unlike traditional, non-progressively tapered standard lenses, our lenses feature Bionomic Curve Lens Technology (quality class 1, ANSI Z87.1) that deliver undistorted light beams directly to the eye, which ensures 100% correct vision that doesn’t strain the eye. All goggle frames are outfitted with the progressive Mark AIR VENT SYSTEM. Design & air flow are engineered simultaneously so that there is perfect lens ventilation & the unobstructed flow of air is guaranteed along the helmet & its Mark AIR CHANNEL SYSTEM. This keeps the inside of the lenses dry & fog-free. The breathable foam behind the inlets & outlets reliably resist the penetration of snow & moisture. The Marker 16:9 goggles come in a lightweight neoprene box with a zipper to make transport & storage easier. The soft lining protects the goggles, while the vent holes allow for quick moisture evaporation.