While parked you can leave the windows open an inch or two to keep the interior cool without worrying about rain entering, and while driving with the windows open you can take advantage of the fresh outside air while minimizing the amount of wind and noise entering your window. On rainy days you can partially open your window without getting soaked, allowing an added bit of ventilation to remove stale or smoky air. Competitors use cheap tape mounting to the vehicles paint and thin material which makes them flimsy.
Material is twice as thick as competitors and mounts with no tape.
Installation is simple and done in five steps.