So lightweight, you'll think the name refers to gravity. We reengineered Zeros® with a sleeker, more aerodynamic sculpt that maps better to cranial contours. All three lens/frame configurations include larger Unobtainium® earsocks to enhance comfort and grip. The low-profile nosepiece and open-edge lenses unlock your range of view. POLARIC ELLIPSOID™ lens geometry maintains peripheral clarity when the world blasts by in a high-velocity blur.