The side visor is a part that I was worried about whether to add or not, but since I ride with my family, I decided to install it because it would provide ventilation.
I chose this one because it was almost the same price as the genuine product and I liked the functionality and appearance.
I was told that wind noise might be an issue, but I personally don't find it bothersome.

●Kanagawa Prefecture Nozomi (CX-5/KF)