Willow® Wearable Breast Pump Generation 3

Rated 4.0 out of 5
658 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

Free Shipping on all Pumps.
FSA/HSA reimbursement eligible.
Get Help Need help deciding?

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 658 reviews
  • 5 Stars
    347 Reviews
  • 4 Stars
    146 Reviews
  • 3 Stars
    49 Reviews
  • 2 Stars
    47 Reviews
  • 1 Star
    69 Reviews
79% of reviewers would recommend this product to a friend
658 Reviews
Reviewed by Rebecca L.
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

Life changer

Being mobile and hands free while pumping has given me more time with my baby. I recommend this pump for every mom

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Willow Pump

Thanks so much for sharing your love of Willow with other moms! Every mom deserves freedom from the plug!

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

Love it!

Hands down favorite purchase!

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Willow Pump

Yay! Thanks for the 5 star!

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

Best pump for working mom

I love these pumps. I am a nurse and to be honest without these pumps I probably couldn’t pump at work. I definitely recommend these pumps. They are super easy to put on and people can barely hear them. I wouldn’t waste your money on the reusable container just because sometimes senses they are full and it will just have one ounce in it. The pumps are a must.

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Willow Pump

Hi mama! Thanks for sharing your review. We're going to have someone reach out to help with your containers.

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

Saves a lot of time on pumping.

I have this pump and I’ve had it for almost 6 months now

I will say it’s a life saver for breastfeeding moms who are returning to work or just don’t wanna be tied up pumping in one spot for 25-30 minutes but they do have some technical difficulties they need to work on such as the pumps and the pump and pour containers which I’ve had to replace but the milk bags are the Best option to me because you can kneel down and over when pumping or take care of other children etc while still pumping with the pump and pour containers you can’t really do too much or else the milk will spill out so overall from a 1-10 I give this pump an 8 it could be a 9/10 but they are expensive as hell lol $499.00 (if you know someone in the healthcare field they do give a 50% off discount) but I will say it’s worth every penny because of the Time and connivence it saves us breast feeding mommy’s !

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Willow Pump

Thanks so much for reaching out to share your experience and feedback!

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

Life changing

The Willow pump is really convenient and powerful. I have a Spectra pump that I use when I’m home and I use the willow when I’m on the go. I love how convenient it is since I can just wear it and be pumping anywhere. It was a little tricky to figure out how to use it at first but the videos they have on their app are very helpful. I wish there weren’t as many parts to clean but it’s still totally worth. One of the must haves I recommend to all soon to be mommies.

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Willow Pump

We're so glad to hear you're enjoying the freedom to pump anywhere!