Fantasie Response: If there was an air pocket at the bottom of the cup then it is possible the cup was too large for you. If the band was cutting into your sides it sounds like the band was too small (the band in this style runs very snug). You might want to try the fantasie strapless bra style Fantasie 4530. The cup runs full so you might want to try a 30F in this bra. Amanda from Erie/Pennsylvania/USA
I'm usually a 30G in Fantasie, but I can't imagine that my breasts wouldn't fit into the cups because the cups were too *big.* It seems more like I just need a different shape of cup, and I think anybody would benefit if they were made from a sturdier fabric. It felt like the support would come entirely from the band and the underwires and not at all from the cup fabric. This may be an option for smaller cup sizes, but the 30GG didn't seem built with its intended buyers in mind.
Fantasie Response: Please see Tomima's tip - it says this bra runs small in the cup; In a GG, it’s the only strapless we have to offer. - Betty from Fantasie
Betty is absolutely correct this bra does run small in the cup: The symptoms sound very much as if the cup was simply too small to accommodate your breast tissue. If the cup is too small there’s no hope of it “tacking” or of surrounding the breast to lift and support. - Freddy from Fantasie Anne from PA