Willow® Wearable Breast Pump Generation 3

Rated 4.0 out of 5
Based on 689 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 689 reviews
  • 5 Stars
    363 Reviews
  • 4 Stars
    152 Reviews
  • 3 Stars
    51 Reviews
  • 2 Stars
    51 Reviews
  • 1 Star
    72 Reviews
689 Reviews
Reviewed by Brianna s.
Verified Reviewer
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

AMAZING!!

For a mother of 3 kids under the age of 6 . This is going to be a life changer. Honestly I was hesitate at first to spend this much on a pump but it has been amazing . I actually look forward to pumping all the time now . I been telling all of my expecting mom friends about it .

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Wow! Who else wants to look forward to pumping?! Thanks so much for sharing the Willow love with other mamas. Brianna!

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

Best pump on the market!!

This pump is a must have for any breastfeeding mother!! I was skeptical for the price but I used it and fell in love. It's a bit of a learning curve since it's different than a regular pump, but once you get the hang of it you will love it. I had a much better output with willow than I ever did on my Medela. Willow was even better than the hospital grade pump! The freedom to still be a mom and go to the bathroom without being tied down by so many cords is a bonus!!

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Willow Pump

Woohoo!! Excellent! Thanks so much for sharing!

Reviewed by Saydee G.
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

Very impressed health care worker

I am a full medical assistant at a doctors office. I gave birth to my little girl February 2021. Shortly after, I bought Willow and their competitor, to test the difference. Willow has a better suction, you can use bags that are convenient (I personally use the reusable containers), and automatically stops at 25 minutes, so you don’t waste the batteries. I get easily 7-10 30 minute sessions before having to charge them. It also helps that I can lay down or do the laundry while pumping.

With their competitor, the suction is “so-so,” harder to clean, app lags, battery only lasts for 2 30 minute sessions, can’t bend over at all (otherwise it will leak), and you could be pumping for an hour and not even know!

Definitely recommend this product!! 5/5! Worth every single penny!!!

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Willow Pump

Hi Saydee, Thanks so much for sharing this with us! We're so happy to hear Willow is your top choice!

Reviewed by Jessica M A.
I recommend this product
Willow Pump
Gen 3
Rated 5 out of 5
Review posted

Love it so much it's my main pump!

I love that it is so mobile and can continue on with my daily activities without being plugged into a wall or have tubes wires all over. They slide right inside your bra and you can do housework, tend to your child/children or just sit and relax. I do have to use inserts due to needing exact sizing for willow. I feel with so many woman needing smaller flanges they should make smaller size flanges and or start selling their own inserts to use with this pump. Overall lifesaver and makes pumping so much easier and convenient. I don't even use any other pump now and only use Willow!

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Willow Pump

Yay! So glad you're enjoying the freedom from the plug! Us moms need to get things done!

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

Life changing!

The willow pump has truly been life changing for me and my family! As I prepared to return to work I tried so hard to sit and pump with my medela to help build a stash but there’s literally no time for that. And I knew once I went back to work in my busy Neonatal ICU, there would be no time to pump either. I was scared of losing my milk supply and terrified of my breastfeeding journey coming to an end because of this so I broke down and got the willow. The week I went back to work my shifts were so incredibly busy I hardly sat down at all the whole 13 hrs! But putting my willows on takes like 5 minutes and then I’m back on the floor, because of this I’m able to pump and keep up my supply!! You have know idea what that means to me and my little one!

I was a little hesitant at first, because so many people post about their troubles with the pumps, bags and containers. I was terrified to spend all that money and then they wouldn’t work but so far everything has been great! lol the sizing is very tricky, I highly recommend calling the willow customer service and getting assistance with measuring and trying to find the right flange size for you before ordering everything in the wrong size (lesson learned). That seems to be the trickiest part people struggle with but once you figure that out it all goes much more smoothly.

One downside for me is that I am unable to hold my daughter or pick her up while pumping. I’m large chested to begin with, and the willows stick extremely far…

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Willow Pump

Thank you so much for sharing your Willow experience! We love hearing from Willow mamas!