This guide has been written in collaboration with, Kirstin Linden, a certified lactation consultant, to ensure accurate and supportive information for your breastfeeding journey
Whether we’re talking jeans, bras, or dresses, finding the perfect fit is so satisfying. However, when it comes to breastfeeding, finding your fit is less about style and more about function (making it doubly important!).
Find the best breast pump flange size for your boobs, and you’ll experience a boost in comfort and breast milk production. But just how do you find that perfect breast pump flange fit? Don’t worry — we’ve got you covered.
What is a breast pump flange?
Let’s start with a little breast pump 101. A breast pump flange (or shield) is the part of your pump that fits directly over your breast. In other words, it’s super important that this piece is matched to your anatomy.
The breast flange covers your nipple and areola (that’s the ring of darker-colored skin surrounding the nipple). Its job? To form an airtight seal between your breast and the pump — your breast flange must form a firm vacuum around the breast.
How do I know what size flange to use for my breast pump?
So, how do you find the perfect breast flange size? Well, first you’ll need to know the size of your nipple so that you can determine what size flange you’ll need.
How to measure nipple size
Measuring your nipples is pretty straightforward, and you can do it in one of two ways:
The easiest (and most accurate) way of sizing your nipples is to use Elvie’s handy nipple sizing guide, which you can download and print out for free.
Alternatively, you can measure the diameter of the base of each nipple (the part where the nipple meets the areola) using a ruler and a debit or credit card. Line the card up with the edge of your nipple and place the ruler under the nipple to create a right angle. Take your measurement from the part where the base of your nipple is widest.