Cup Spilling Reason #1 - CUPS
It's a painfully obvious one... Your cups are too small. A lot of women don't know that cup sizes go beyond a D cup or don't realize that the tissue at their armpit is actually breast tissue and not fat and wants to live inside the cup rather than be forced out. A well fitting bra cup will encircle the breast either all the way around (full cup) or in a semi-circle at the bottom leaving the top exposed (demi cups, balconettes and plunges). Whatever the style, where the cup comes into contact with the breast the cups want to go around the outside edge of the breast not sit on it.
|This image from Thin and Curvy demonstrates how your cups sag at the front when your band is too big|
Cup Spilling Reason #2 - BAND
Your band is too loose. My old favourite, the band! You may actually be wearing a cup volume that's right for you but the band is too big (remember that the cup volume is different from the cup letter - a 38E, 36F and 34FF have the same cup volume but different cup letters). When your band is too big for you the whole bra is tilted at an angle which tips forward under the weight of your breasts. When the angle is tipped forward like this it skews the angle of your cups and your breasts can fall out of the cups even when the cup volume is big enough for you. You need the band to keep your whole bra in place so that the cups can work effectively. If your band rides up your back then you need a smaller band and a larger cup letter, possibly even a larger cup volume.
Cup Spilling Reason #3 - STYLE
The style is wrong for you. You may find that in some bras that no matter which size you try you still spill out of the cups and that simply means that the style isn't right for you. If you have very close-set breasts or very full on top breasts you may come across this more often than other breast shapes. If the style of the bra cuts very acutely across the place where you have full breast tissue then you will always get some quadraboobing. Once you figure out which styles of bras work well with your shape you'll know how to spot a style that just isn't right for your breasts.
Our bra calculator is an easy and quick place to start figuring out your bra size and to stop your cups spilling xx