Total BS....in my opinion. I can show several good dings from before I got the bra....can't show you any afterwards. And, I dare say, you can not tell I ever had one on it. But then again, I only use it for road trips and it's removed as soon as I arrive. It's cleaned and stored for the return trip. It's also not used if it's raining. Like everything else, if it's used and maintained properly, it's purpose is served. Most mileage on mine is interstate from FL to PA and elsewhere in between (mainly NC).

But, to each his own. I personally don't like them at all......but I dislike dings from disintegrating pavement and log truck debris even more.