Willow Wave Double Wearable Manual Breast Pump, Pump Both Sides Discreetly, Ergonomic Handle, 24mm Silicone Flanges, Two 5oz Containers, Works with Electric Breast Pumps as Hands-Free Conversion Kit
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Availability:
In Stock.
Arrives
Jul 3 – Jul 4
Set name: Wave -Double Manual Pump
Features
- PUMP BOTH SIDES, FULLY CLOTHED: Two ergonomic handles, two 5 oz containers; The first wearable double manual breast pump; Cut your manual pumping time in half
- DOUBLES AS HANDS FREE CONVERSION KIT: Compatible with more than 20 traditional electric pumps including Medela Pump in Style, Spectra S1 and S2, Motif Luna, and others; Turn any tethered pump into a hands free session
- QUIET MANUAL OPERATION, NO CHARGING: Near silent two phase suction; Always ready; The reliable backup to your electric pump
- COMFORTABLE FIT, INCLUDED ACCESSORIES: Two 24 mm soft silicone flanges included; Additional sizing inserts available separately
- FROM WILLOW, INVENTOR OF THE WEARABLE PUMP CATEGORY: Backed by Willow warranty and customer support
Package Dimensions : 10.16 x 7.01 x 3.54 inches; 1.37 Pounds
Item model number : PMK20
Date First Available : March 10, 2026
Manufacturer : Willow Innovations, Inc.
Best Sellers Rank: #1,971 in Baby (See Top 100 in Baby) #9 in Manual Breast Pumps
#9 in Manual Breast Pumps:
Customer Reviews: 3.6 3.6 out of 5 stars (308)
Brand Name: Willow
Number of Items: 2
Model Name: Wave_Pump
UPC: 810104130929
Manufacturer: Willow Innovations, Inc.
Model Number: PMK20
Manufacturer Part Number: PMK20
Unit Count: 2.0 Count
Additional Features: Double Pump, Ergonomic, Lightweight, Portable, Wearable
Material Type: Silicone
Color: Clear
Product Style: Manual Pump
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 3 – Jul 4
Yes, absolutely! You may return this product for a full refund within 90 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Set name: Wave -Double Manual Pump
I have been very impressed with the Willow Wave Double Manual Breast Pump. As a breastfeeding mom, I like having a reliable manual pump on hand for travel, emergencies, or when I don't want to pull out my electric pump. The pump is lightweight, easy to assemble, and comfortable to use. I was pleasantly surprised by how much milk I was able to collect with it. The suction is effective without being uncomfortable, and I appreciate the control that comes with a manual pump. One of my favorite features is how portable it is. It fits easily in my diaper bag and doesn't require batteries, charging, or outlets. It has been a lifesaver for car rides, appointments, and those unexpected times when I need relief away from home. The quality is excellent, it's easy to clean, and it has become a staple in my breastfeeding toolkit. I would definitely recommend it to any breastfeeding mom looking for a dependable manual pump.
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Reviewed in the United States on June 2, 2026 by Verified purchase and reviewer Alert 🚨🚨❤️
Set name: Wave - Single Manual Pump
I was super excited for this and was sorely disappointed. I heard so many great things about the Willow wearables and wanted to give this a shot to replace my Medela manual pump. This has terrible suction and I tried so hard to make it work. For reference: I have larger breasts (34DD). At the time I tried this, I was 9 months PP and actively pumping at work and breastfeeding at home. I made sure I had accurate nipple placement for this. I also tried using both with and without flange inserts. I also hated the Lansinoh and Tommy Tippie manual pumps.
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Reviewed in the United States on May 26, 2026 by Elizabeth
Set name: Wave - Single Manual Pump
I’ve been using the Willow Wearable Manual Pump for a few weeks now, and I’m honestly so impressed with how convenient and empowering it is. As someone who’s constantly on the go, having a truly wearable, discreet option has made a huge difference in my daily routine. What I love most is how lightweight and comfortable it feels. It fits easily inside my bra and doesn’t feel bulky or restrictive. I can move around freely whether I’m working, doing chores, or caring for my baby without feeling tied down to a wall or a traditional pump setup. The manual control also gives me the ability to adjust suction at my own pace, which makes the experience feel more natural and comfortable. It’s easy to assemble, and simple to clean. The design is sleek and thoughtfully made, and I appreciate how intuitive it is to use, even during those sleep-deprived newborn days. The parts feel durable and well-made, which gives me confidence that it will last. Overall, the Willow Wearable Manual Pump has given me flexibility and peace of mind. It’s a fantastic option for moms who want comfort, control, and true mobility without sacrificing effectiveness. I would absolutely recommend it to anyone looking for a convenient, hands-free pumping solution!
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Reviewed in the United States on February 24, 2026 by I got this to use bedside to store breastmilk overnight as I pump and it has been such a life saver! Couldn’t go without it
Set name: Wave - Single Manual Pump
I love this pump but it squeaks and milk is constantly getting in the tubing. I have amazing output with them (more than my $300 hospital grade pumps) but the squeaking drives me up a wall! Even when the pump isn’t full milk still gets in the tubing. I’m not sure if my flow is just too strong for the valve and it doesn’t all go into the collection cup but they’re a pain in the butt to clean!
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Reviewed in the United States on October 15, 2025 by Hailey Larsen
Set name: Wave - Single Manual Pump
Convenient, discreet, and easy to use and clean. Where was this at the beginning of my breastfeeding journey? No longer tethered to my chair, I can pump with ease and grace as I prance through my chores and answer to my infant's whims. When I need to pump, just slip it into my bra and go. Great for power pumping, in between feed pumping, and on the go. No electricity or batteries to fuss over. I typically use 17mm flanges and this fits comfortably. Now for the area of improvement- It doesn't replace the Spectra as the primary milk pump in terms of maximizing output. The handle takes a bit getting use to since it is large. The milk volume lines could be more detailed. But for the price and portability, it's a no brainer for any breastfeeding/pumping mom. Add this to your arsenal.
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Reviewed in the United States on October 5, 2025 by Dumpling girl
Set name: Wave - Single Manual Pump
This is hands down my favorite manual pump… and also the one that has personally betrayed me the most. It fits easily in my bra, I can cover it with my shirt, and I don’t have to sit there holding it—just pump and go. Absolute dream for discreet, hands-free use. BUT. The backflow issue is real and relentless. Milk regularly flows back into the tube and even into the handle, and yes—I’ve lost a painful amount of milk because of it. If you’re not actively watching it like a hawk, it will happen. Every. Single. Time. I love the design and convenience, but the backflow problem keeps this from being perfect. Proceed with caution… and maybe a little side-eye.
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Reviewed in the United States on December 24, 2025 by Charity (Booktrovert Reader)
Set name: Wave - Single Manual Pump
Amazed by this option for milk extraction since its suction is good and helps me to be able to extract the milk I need for my baby in a short time. I have an electric one but I feel that many times it takes a long time almost half an hour to be able to fill it. On the other hand, this one I feel is faster and it doesn't hurt me, it feels like my baby is sucking.
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Reviewed in the United States on June 9, 2026 by Betzabethm
Set name: Wave - Single Manual Pump
I’ve used this for about a month now. This pump would be incredible if tweaked a bit.. there’s a good amount of cons but don’t get me wrong, I will still be using it! I just wish it was a bit better. Pros: fits into your bra and is very discreet. Easy to use while also multi-tasking. Pump pieces are relatively easy to clean and assemble. Easily transported but I wish it had a little bag to put it in. Cons: the handle is very large and I have to switch hands to avoid cramping. Randomly milk will get into the tub and requires immediate and thorough cleaning. I can’t figure out why that happens and it’s a PAIN to clean. You can’t see how much milk you’re producing like you can with a traditional hand-pump. The silicone plug to the milk collector does not stay shut. It doesn’t even align correctly and is a bit off centered. If you occasionally lean too far, the milk will pour out. Update: I took off another star because the plug to the milk cup is constantly popping open causing spillage. The amount of milk I’ve lost because this thing doesn’t stay shut!
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Reviewed in the United States on October 19, 2025 Reviewed in the United States on October 19, 2025 by LifeWithMarissa