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Save with insurance: Most moms can save $95-159 on a Willow Pump Verify insurance →
Save with insurance: Most moms can save $95-159 on a Willow Pump Verify and save →
Having a flange that fits is critical for performance (that's right, size impacts output!) and comfort.
With the Willow Fit Check, you'll receive two sets of inserts that will help improve both fit and comfort. We'll walk you through it step by step, starting with our digital sizing guide that makes measuring easy. You can also book a virtual session with one of our Sizing Specialists to troubleshoot and talk through any of your questions.
How it works:
Visit our FAQs to learn more.
When it comes to wearables, sizing is different — you'll need a fit that's more snug.
Most moms find that adding 1-3mm to their nipple size (or 0-2mm if you're pumping with Willow 3.0) results in optimal output and comfort.
With the Flange Fit Bundle, you'll get multiple inserts* to experiment with — and be more likely to find what's right.
*Sometimes flanges just won't fit well enough on their own. Inserts are a great way to optimize fit and make them more comfortable.
Your Flange Fit Bundle will include two sets of inserts (or a set of flanges and inserts). If you receive inserts, you will need to use the 24mm flange included in your pump kit.*
The inserts you receive are yours to keep. As your breasts and nipples change size throughout your pumping journey, you may find that you use both of them, plus the other flanges in your pump kit, at different points.
The Willow Fit Check includes one virtual session with a Sizing Specialist. During the 30-minute appointment, they can walk you through taking your measurements, answer any questions about how to use your inserts, and help you perfect your fit.
The Willow Fit Check is a sizing service that uses your nipple measurements to recommend a bundle of inserts (or a flange and insert combo) that may optimize your comfort and output while pumping. In addition, it provides you with access to a 30-minute virtual session with a Willow Sizing Specialist. They can help you take your measurements if you're not sure how to use an at-home measurement tool, and answer any other questions you have about fit.
Discomfort (think: pinching, pulling) and challenges with output are two of the biggest indicators that your flange may not fit properly, and that you could use some support from the Willow Fit Check. You may also benefit from the Willow Fit Check if you’ve had trouble measuring your nipples on your own using an at-home measurement tool, and are unsure about whether your flange fits properly. Wearable sizing is different — you’ll need a more snug fit!
*Sometimes flanges just won't fit well enough on their own. Inserts are a great way to optimize fit and make them more comfortable!
No, the Willow Fit Check is an add-on! This is by design — we recommend that you purchase the service and take your measurements after your baby is born, since your nipples and breasts will change size!
No! Your breast and nipple size may change throughout your pumping journey, so the flanges and inserts that you receive in your Flange Fit Bundle (plus those that came in the box with your pump) are yours to keep. We recommend you measure frequently (and any time that you feel discomfort or see a change in output) to make sure that you’re still using the right size.
To make the best use of your time with our Sizing Specialist, we recommend booking your appointment once you've received your Flange Fit bundle. That way, you can try them on during the appointment to ensure you have the right fit. We also recommend having your Willow pumps charged and paired to the app so that our Sizing Specialist can walk through pump assembly and setup with you.
Measure one hour before or after breastfeeding or pumping. We recommend you measure frequently (and any time that you feel discomfort or see a change in output) to make sure that you’re still using the right size.
The Willow Fit Check is non-refundable, meaning your purchase of the Flange Fit Bundle and virtual sizing appointment is not eligible for return. If you have any questions about your purchase, please contact our Customer Care team. For more information on the return policy, please review the terms and conditions.
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