Surprisingly this bikini runs tighter in the band compared to Curvy Kate bras (which I consider a good thing!). Not as tight as Freya or Cleo Swimwear, but pleasantly surprised. This particular bikini top runs very deep. I cannot quite fill the top, and worry that if I swim in it, it will fill with water and cause major displacement. But, if you run deep this could be a really good basic bikini. If I had purchased a 28DD I'd probably be perfectly content (I usually wear 28E-F).
The cups are quite deep, and have a light stretch to them (quite possibly even more so when they get wet), making them more of an inbetween DD&E. The band too big for my 26" ribcage, and the fabric wrinkles on the side (not conical friendly). Would be good for someone with a wide root however.
Please read my full review for more info! - Coming soon.