For example, if your bust measurement is 37 inches and your band size is 34 inches, the difference of three inches equals a C cup. However, while wearing a bra may help, it cannot completely prevent sagging. The materials used in traditional bras may be uncomfortable for new moms. List Footstools for Breastfeeding Mothers. Poop-covered clothing is in your future. Article Sources Lawrence, Ruth A. Bridget Coila. And if you also want a luxuriously soft and supportive sports bra you can nurse in, take a look at our Sublime Sports Bra! This is why it is a good idea to store your expressed milk in containers of different volume portions, so as not to waste any of your precious expressed breast milk. Take a second measurement around the fullest part of your breasts to determine cup size. These are a great option as well. Oftentimes, when purchasing a pump, a cooler and ice pack is provided as part of the breast pump ensemble. I have been wearing my nursing bras for over a year now. Nursing Sleep Bra. Breastfeeding and Human Lactation Fourth Edition. A four-inch difference would equal a D cup, and so on.