Breast Pump Flange & Insert Size Guide
Getting the right breast pump flange fit for your body is one of the most important parts of your pumping experience. If your pump doesn't fit you, using it could be like wearing the wrong bra. Awkward, frustrating, and pretty darn uncomfortable.
Our pumps are customizable, with different flange and insert sizing options to customize the pump to fit your body.
Do I need a single or a double pump?
Which products do I need?
Size Chart for Elvie Pump and Elvie Stride (Not including Elvie Stride 2.)
| Nipple measurement | Sizing option(s) recommended |
|---|---|
| Up to 12 mm | 15 mm nipple cushion + 24 mm breast shield * |
| 13 - 15 mm | 17 mm nipple cushion + 24 mm breast shield * |
| 16 - 17 mm | 19 mm nipple cushion + 24 mm breast shield * |
| 18 - 19 mm | 21 mm breast shield |
| 20 - 22 mm | 24 mm breast shield |
| 23 - 26 mm | 28 mm breast shield |
What are breast shields and nipple cushions and why might I need them?
Your pump uses a breast shield to connect your nipple with the pump. If it does not fit, it can affect milk volume and comfort. Elvie offers shields in 21 mm, 24 mm, and 28 mm.
If you have smaller nipples, you might need Elvie Nipple Cushions. Nipple Cushions are soft, silicone accessories that you can place inside a 24mm Breast Shield (which are included with all the breast pumps listed above) to help size down your shield and provide extra comfort. Elvie Nipple Cushions are available in size 15mm, 17mm, or 19mm. You can identify your fit with the table above.
To find the right combination for you, you need to measure your nipple. Follow the guidance below to learn how.
Elvie Stride 2:
Exciting news! Stride 2 is our first product to include ALL sizing inserts in the box as well as a handy kit to help you measure your nipples. We recommend using the in-box measuring tool on arrival to choose your inserts.
Can I use Elvie Nipple Cushions with my Elvie Stride 2?
We wouldn't recommend using Elvie Nipple Cushions with Stride 2, and would recommend using the in-box inserts. Elvie Stride 2 includes inserts within the box, which provide the comfort of a Nipple Cushion.
How do I measure my nipple?
Why is breast pump sizing important?
No two ways about it. Getting the right size for you is kind of a big deal. It connects your pump to your body. If it doesn't fit, you might experience decreased milk volumes or even pain or discomfort. Not ideal, right?
What do I need to measure?
To get the recommended breast pump fit for you, you need to measure the base of your nipple. The base of your nipple is where it meets the areola. The areola is the circular patch of darker skin on your breast.
It’s important to size both of your nipples. No two nipples are the same, so you might find you need different sizes for left and right.
To avoid inaccurate measurements, do not measure yourself directly after pumping or breastfeeding.
- Do not measure immediately after pumping or breastfeeding.
- Measure at the base of your nipple, where it meets the areola (the darker skin area).
How do I measure my nipple size?
- Grab a ruler and a debit/credit card.
- Perk up one of your nipples.
- Hold the card at the end of the ruler at a right angle (align card edge to 0 mm).
- In front of a mirror, place the base of your nipple in the ruler-card corner.
- The widest point at the base of your nipple is your size.
Try our printed sizing tool
Gifting to someone else?
We recommend choosing the 24 mm option. The user can then use our app to find the best fit and purchase additional inserts if needed.