When I talk about narrow or broad underwires, I talk about the distance between the tips of one underwire, not about the distance between the cups in the front. Whether a bra brings the breasts closer together doesn't depend on the width of the underwires.
The width of the underwires depends on how wide the base of the breast is, not on how close together the breasts are.
If you have a wide bottom radius, you will have to wear bras with wider underwires. Narrow underwires will cut off a part of your breasts. If you have a narrow bottom radius and you try on a bra with wide underwires, the part of the cup under your armpit will be empty. Here is a detailed explanation of wide and narrow underwires.
Now, whether a bra brings the breasts closer together doesn't depend on the width of the underwire, but upon the construction of the cup. A narrow center gore helps (you want the underwires to touch each other in the front). But it´s much more than that -- it´s about where the deepest point (the tip of the cone) is located, and whether the sides of the cup are slightly flattened.
Bras like the Panache Inferno, Freya Retro and Gossard Superboost enhance the cleavage by pushing the breasts closer together. Inferno has wide underwires, Retro has narrow ones while Superboost has medium.
Bras like the Panache Inferno, Freya Retro and Gossard Superboost enhance the cleavage by pushing the breasts closer together. Inferno has wide underwires, Retro has narrow ones while Superboost has medium.
