Breast Pump Sizing Kit
Find your perfect breast pump flange fit with a wide range of inserts designed for maximum pumping comfort and milk output.
Buy direct from the source
Free delivery on orders $50+
2-year warranty on electric pumps (90 days on accessories)
Chat and Whatsapp 24/7 support
In-app support and guidance
Better pump fit, better milk flow.
5 Insert Sets for
Inclusive Sizing
Sizing Tool to
easily find your size
Pump Sizing 101 guide
Support via Sizing Specialist
How It Works
- Measure your nipples either an hour before or an hour after nursing or pumping.
- If your flange still doesn’t feel comfortable, experiment with the other inserts. (Also, make sure you’re wearing a snug but stretchy pumping bra!)
- Book your session with a Willow Sizing Specialist if you need additional support
Frequently asked questions
*T&C's apply. See Elvie.com for details.
**Exact out of pocket cost may vary based on your insurance carrier and insurance plan.
SMALLEST¹: Product depth vs. the top 5 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
QUIETEST²: Acoustic testing in maximum expression mode vs. the top 15 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
SMARTEST³: Number of app features available to control, monitor and track usage vs. the top 5 best-selling electric breast pumps in the US, UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
SLIMMEST⁴: Product depth vs. the top 5 best-selling electric breast pumps in the US, UK UK, Germany and France (Sales data from Q2 2021 to Q2 2022).
1. vs. Elvie Stride
To verify please contact Elvie at verify@elvie.com.
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