Are plunge bras good for side set breasts?

Yes, plunge bras are a good option for someone with side-set breasts.

Plunge bras are a great for anyone who wants to show cleavage in a low-cut top or dress. It's an ideal style for smaller chests because the plunging cups can cut into fleshy tissue and create lumps. Other breast shapes that work well with this bra style are bell-shaped breasts, round breasts, and teardrop breasts.