The air turbulence behind the glasses are significantly reduced, the lateral field of view is limited by the wide strap. By polarization dazzling reflections are attenuated, the gray tint changed the natural colors only slightly.
However, the display of my bike speedometer and the smartphone appear somewhat stained by the polarization, some places are darker than others.
All in all, for me to reduce a very inexpensive solution to carry their own glasses and air turbulence.
