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Wearable · in-bra

Willow Sync

By Willow
4.5 (6 reviews)
Insurance

Covered by insurance

Most moms are fully covered for this pump. The check takes about 2 minutes — we handle the paperwork.

CoveredFully covered by most plans
Max Coverage Guarantee — if your plan qualifies for a better benefit, we apply it automatically.
Get this pump through insurance
  • 2-minute eligibility check — have your insurance card handy
  • Order window: most plans allow anytime during pregnancy
  • Plan not covered? You still get our Moms First price — 20% off retail.
Moms First
Retail

Buy with Moms First

Order direct, no insurance needed — most moms add a second pump this way. Moms First members save 20% and get 2 expert-led classes.

$229.99
  • Ships same day by 2 PM ET, arrives in 1–3 business days
  • Free Breastfeeding 101 + Pumping Basics
Free delivery HSA/FSA eligible Max coverage guarantee
About the Willow Sync

Why moms choose
the Willow Sync.

Willow Sync is the newest fully in-bra wearable pump from Willow's award-winning pump portfolio. Willow Sync has an innovative design that fits fully in bra, flexibility to pump single or double, highly customizable features, and unique technology built for efficient output. Gain access to best-in-class customer care and the Willow app, where you can manage your sessions and access feeding support. Plus, it's easy to assemble and has dishwasher safe parts, making cleanup a breeze.

  • Discreet in-bra design: lightweight cups fit fully inside bra for hands-free pumping
  • Flexible single or double pumping: one powerful motor connects to one or two cups with customizable tubing
  • Award-winning technology: internal circular motor for better alignment, and rechargeable battery that lasts up to 3 pumping sessions
  • Clinically designed for milk output: smooth flange tunnel with a 105° cone angle clinically proven to support milk output
  • Hospital-strength suction you control: 20 customizable levels (up to 245mmHg per side) give you power and precision to pump your way
  • Smart Pumping: app controlled to manage sessions, start, stop and change suction, track milk volume and gain access to expert backed content in the Willow app.
  • Convenient milk storage: 5oz containers with Splashguards & easy-pour spouts simplify milk transfer. Most parts are Dishwasher-safe parts for easy cleaning
Ideal for

Who the Willow Sync
is built for.

Working moms

Pump discreetly during meetings, commutes, or while chasing toddlers — no cords, no setup, no interruptions.

Moms on the go

Fits in your bra and works anywhere. Perfect for errands, travel, or just getting out of the house.

Exclusive pumpers

Multiple daily sessions are easier when you can move freely. Pair with a tabletop pump for variety.

What's in the box

What you get

  • 1 - Willow Sync Breast Pump Motor
  • 1 - Receiver
  • 2 - 5 ox Container Set
  • 2 - Diaphragm
  • 1 - Tubing
  • 1 - USB Cable
  • 2 - 24 mm Flange
  • 2 - 21 mm Sizing Insert
Specs

The technical part.

Brand
Willow
Manufacturer Part Number
PEG25
UPC
810104130943
Breast Pump Type
Double Electric Breast Pump
Pumping Options
Single or Double Pumping
Vacuum (max mmHg)
245 mmHg
Suction Modes
Suction (20 Levels)
System Type
Closed System / Backflow Protection
Power Source
USB
Battery Life
60 Minutes
Charging Time
120 Minutes
Dimensions
3.2" (L) x 4.7" (W) x 5.3" (H)
Weight
0.8 lb.
Milk Capacity
5 fluid ounces
BPA Free
Yes
HSA/ FSA Eligible
Yes
App Connectivity
Warranty
1 year on pump motor and 90 days on accessories; call (888) 945-5693 for service
Categories
Wearable Breast Pump; Hands-Free Breast Pump; Hospital-Strength Breast Pump; Portable Breast Pump
User Manual
Replacement parts & resupply

Keep your Willow Sync
working like new.

MilkZoom · Recommended

Replacement parts. Shipped monthly. Through your insurance.

Duckbills, diaphragms, tubing, breast shields, storage bags — all shipped to your door every month, billed to your insurance. Most moms are fully covered.

Learn More
$71.33
Average monthly value covered through insurance
Average across 1NW MilkZoom members with insurance coverage. Individual savings vary by plan and pump model.

Compatible parts at retail.

Need a single part rather than a recurring shipment? These are the Willow Willow Sync-compatible parts available for one-off purchase. If your plan covers MilkZoom, the program above offfers better economics — these retail options are for moms whose insurance doesn't cover resupply, or who just need one specific item right now.

Answered honestly

Common questions
about the Willow Sync.

Real questions our IBCLC team and care concierge get every week. Don't see yours? Ask our care team — included with every pump.

Most insurance plans cover breast pumps at no cost to you under the Affordable Care Act. The Willow Sync is one of our most popular covered pumps.
Check your coverage →
Most insurance plans allow you to order your pump at anytime during pregnancy. Some plans let you order earlier. We'll check your specific eligibility window when you enter your insurance info.
Once your order is on file and all paperwork is received, your pump ships the same business day if that happens by 2 PM ET, or the next business day if not, and arrives 1–3 business days after it ships. We ship free via UPS, FedEx, and USPS.
Every pump comes with access to our care team, including IBCLCs (lactation consultants) who can help with sizing, settings, and technique. You can reach them via chat, email, or video call — all included at no extra cost.
Yes! Breast pumps are HSA/FSA eligible. If you're paying out of pocket or covering an upgrade, you can use your pre-tax health savings.
Verified reviews

Real moms. Real critiques.

Begin with coverage

Find out what your insurance covers —
in about 2 minutes.

From pumps to maternity supplies. No obligation, no phone calls — we handle the paperwork either way.

Willow Sync Upgrade fee may apply · rest covered
Check my coverage