Willow® Wearable Breast Pump Generation 3

Rated 4.0 out of 5
628 Reviews

Meet the all-in-one breast pump that fits in your bra and goes where you go. Our patented, no-spill technology lets you pump smarter and fully hands-free.

More comfort. More control. And 20% more milk*.

What's New for Generation 3?

Willow Pump Generation 3

Re-engineered from the inside out, our Generation 3 smart pump offers more comfort and control – and helps you get more milk.

  • Slower, softer pumping rhythm designed for comfort
  • Smart Suction technology adjusts based on your preferences to increase output (no need to press a button)
  • Plus, a new app exclusively for Generation 3 with step-by-step onboarding and personalized pumping tips

Select a Flange Size (Sizing Guide)

Find Your Flange Size

with a ruler app on your phone

    Your flange size is based on your nipple measurement in millimeters. Use an app ruler for easy and accurate sizing

    • Download "Ruler 2.0" for iOS or "Millimeter" for Android phones.
    • In iOS app settings, set measurement to “mm”. For Android, select default calibration.
    • Stimulate nipple to perk it up
    • Place phone screen perpendicular to nipple. (Figure 1)
    • Nipple base should line up with the zero points in the corner of app screen (Figure 2)
    • Slide measurement bar on screen to opposite nipple base - that’s your nipple measurement. (Figure 3)
    • Use a flange that’s 2-4 mm larger than your nipple measurement. (Figure 4)
      • Willow Size Guide

        FRONTAL VIEW
        Hold phone
        perpendicular to nipple.

        Willow Size Guide

        TOP DOWN VIEW
        Use your finger to slide the ruler line to measure nipple.


        Flange Size Chart 4

        Find the right flange sized based on
        your measurements.

        Flange Size Chart
$499.99
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Milk Storage Options

Pump Your Way

Willow is the only in-bra pump that gives you the flexibility to pump directly into spill-proof storage bags (24 included with Pump Kit) or reusable Containers (sold separately).

Milk Storage Options

Pump Your Way

Willow is the only in-bra pump that gives you the flexibility to pump directly into spill-proof storage bags (24 included with Pump Kit) or reusable Containers (sold separately).

  • Everything works inside the Pump and inside your bra, with no external tubes, cords, or dangling bottles to hold you back.
  • Milk flows into the self-sealing and spill-proof disposable collection and storage bag (an essential part of the Pump Kit) or reusable Container inside the Pump (Container accessory sold separately).
  • Smart, proprietary technology responds to your body and maintains suction similar to a baby, enabling true mobility without spilling a drop.
  • Lie down, bend over, play with baby, take a conference call… pump wherever the day takes you!
  • The only wearable pump offering the option to pump into either Milk Bags or Reusable Containers
  • The only wearable pump that is totally enclosed and spill-proof in any position, with self-sealing Milk Bags
  • Quiet for discreet pumping
  • Seven levels of suction comparable to most traditional double electric and hospital grade pumps, with two new lower suction levels and a new sensitivity setting
  • Smart Suction technology adjusts based on your preferences to increase output (no need to press a button)
  • New app exclusively for Generation 3 with step-by-step onboarding and simple, fast pairing – plus volume tracking, session history, and personalized pumping tips
  • Compatible with iOS (iPhone 6 or newer) and Android (supported models)
  • Only two parts to clean (dishwasher safe)
  • BPA free
  • Rechargeable battery lasts up to 5 pumping sessions to get you through the day
  • One year warranty

Willow comes with everything you need to get started:

  • (2) Willow Pumps
  • (2) 24mm or 27mm Flanges (21mm Flanges ship in a separate box)
  • (2) Flextubes™
  • (24) 4 oz. Milk Bags
  • (2) Cleaning Brushes
  • Charger
What are the new features for Willow Pump Generation 3?
We’ve re-engineered how Willow pumps to yield more milk per session - and offer more comfort and control. Generation 3 has a slower, softer pumping rhythm and a sensitivity setting for comfort, plus new Smart Suction technology that adjusts based on your preferences to help you get more milk. Compatible with our new app exclusively for Generation 3, which offers fast, easy pairing, step-by-step onboarding, and personalized tips.
How do I download the Generation 3 App?
Our Generation 3 App is available for iOS and Android. Please see list of compatible devices.
Do you offer financing?
Yes! We partner with Affirm to offer payment plans for the Willow Wearable Breast Pump. Learn more
Can I use my HSA/FSA?
Yes you can. Simply pay for your breast pump, milk bags, and accessories using your FSA/HSA debit card at checkout, or pay with another credit card and submit your receipt to your plan administrator for reimbursement.
Is Willow covered by insurance?
Some women are able to obtain full or partial reimbursement for their Willow Pump through insurance. We recommend you contact your insurance provider to see if they will cover some or all of the cost of the pump.
Does Willow work with larger breast sizes?
Yes. Willow was designed to work with larger breast sizes including G and H bra cups. See our Sizing Guide for fit.
Do I need a special bra for Willow?
We recommend wearing Willow with a full-coverage nursing bra that’s stretchy and has a flap. Avoid underwire and padded bras.
What sizes are available?
Willow offers Flanges and Milk Container accessories in size 21mm, 24mm & 27mm. Unsure of your size? Visit our sizing guide.
Can you ship Willow internationally?
Not at this time, but our goal is to get Willow into the hands of women around the world—so it’s something we hope to offer in the future.

Awards & Accolades

average rating 4.0 out of 5
Based on 628 reviews
  • 5 Stars
    336 Reviews
  • 4 Stars
    138 Reviews
  • 3 Stars
    46 Reviews
  • 2 Stars
    43 Reviews
  • 1 Star
    65 Reviews
79% of reviewers would recommend this product to a friend
628 Reviews
Reviewed by Katy
Verified Reviewer
I recommend this product
Willow Pump
Gen 1
Rated 5 out of 5
Review posted

Couldn't have done it with any other pump!

I have a very labor intensive job and my pumps have not failed me yet. I suggest looking into appropriate bras for using while pumping. Not necessarily nursing bras just ones that hold them in place good for you 😊 It’s been a total lifesaver. Especially the bags considering I don’t have to handle the milk. Just pop the bag in, put the pump on, wait until it’s full and toss it in the fridge! I would not have followed through with pumping or breastfeeding if it wasn’t for these pumps! Good luck to you! 😊

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Willow Pump

We're so happy to hear this! Thanks for sharing your tips and feedback with other mamas!

Reviewed by Kayla
Verified Reviewer
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

From a working mama..

The Willow pumps have absolutely changed my relationship with breastfeeding. When I started working after maternity leave, pumping and breastfeeding my son seemed like an impossible thing. Let’s face it. The working world does not support breastfeeding mamas. I felt bad about interrupting my workflow, hiding in a closet, switching into pumping bras, frantically finding outlets... it was just ridiculous. AND THEN THE WILLOWS SHOWED UP AT MY DOOR STEP! Goodbye to pauses in my work day! Goodbye changing into nursing bras and so and so forth! My Willows are everything to me. I am able to function at hone and at work while pumping to feed my sweet boy! I’m never looking back!

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Willow Pump

This makes us so happy! We love hearing how Willow is improving moms' pumping experiences!

Reviewed by Amber M.
Verified Reviewer
I recommend this product
Willow Pump
Gen 2
Rated 5 out of 5
Review posted

Hands free lifesaver

I bought the Willow after reading many reviews and watching tons of videos. I chose it for its leak proof ability and knowing from reviews it had a strong suction which I needed. I’m a nurse in the NICU and I use these every shift 3 times per shift. These have allowed me never to miss a pump session. I gave this pump the time and did my research on how to make sure I was using it properly. Now I am able to advocate for it to my fellow coworkers and educated other moms with babies in the NICU who have the Willow on how to use it or promote them to purchase one if it is fitting for their situation. I have had no real issue I couldn’t resolve from cleaning or repositioning the pump. I wish I would have had these with my prior two babies but am so thankful to have them now!! Thanks Willow!

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Willow Pump

Awesome!! Thanks so much for taking the time to share this with us!

Reviewed by Brandy C.
Verified Reviewer
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

I love my willow!

I absolutely love my willow pump. This has been a total game changer for me. I own a busy pizza shop and willow has allowed me to exclusively pump for my 5 week old. I also use it at gome now and prefer it over my spectra.

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Willow Pump

Yay!! We're so happy to hear this!

Reviewed by Brianna S.
Verified Reviewer
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

Love!! Perfect for work!

I love my Willow pump! I get more out of each session than my Madela pump. Maybe an ounce each time but that adds up! I also love our discreet it is and can use at work and still be mobile. I use the reusable attachments.

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Willow Pump

We're so glad to hear that! Thank you for sharing your review!