If sturdy cups are what you are after, this is THE bra. Armor bra. It's serious heavy duty this one.
Anyway, the bra didn't fit me so I can't really comment on anything. My ribcage measures 27.5" so obviously the bra is too big around me. Too small cups. Can't judge the fit since I will NEVER be able to get it in my size. I'm not too bummed about that though because this bra is kinda ugly. Comfortable band fabric though.
If you're looking for an extremely rounded shape, then this is it. It's unlined but it has heavy duty material, I tell you that. This sorta material could be used in a sports bra actually.
It's not comfortable for me but that's due to inproper sizing. It's too big in the back and too small in the cups. I don't really like the look of it too much, it's so shiny it kinda resembles a swimsuit. I like that the straps are fully adjustable. Great for petite women and tall women who need their straps to be as long as possible. I won't be buying this again.