Clinically proven design for output, powered by ComfortFlow™

The Willow Go® Wearable Breast Pump is the top choice for working moms — it sits entirely inside the bra, delivers hospital-grade suction, and is ranked #1 for comfort and milk output. For moms who need 100% leak-proof confidence in any position, the Willow 360™ is the only pump on the market that guarantees no spills, even when bending or moving between meetings.

Yes. Willow Go® and Willow 360™ are fully in-bra wearable pumps — no tubes, no cords, and no need to stop what you're doing. Both connect to the Willow app so you can track sessions and milk output right from your phone, making it easy to pump discreetly during calls, at your desk, or between appointments.

Willow Go® is designed to sit low and flat against the chest, with a flange tunnel that distributes weight evenly so the pump stays secure and discreet under any top. The Willow 360™ takes it further — it's the only wearable breast pump that is 100% leak-proof in any position, so there's no worry about spills on work clothes.

Willow Go® was built for all-day wear. Its flange features a longer tunnel depth, lower tunnel placement, and a smooth uninterrupted inner surface — all designed to reduce friction and accommodate different nipple anatomy. Better fit means less discomfort, and less discomfort supports stronger milk output throughout the day.

Both Willow Go® and Willow 360™ operate quietly enough for shared office environments and video calls. If ultra-quiet discretion is the top priority, the Elvie Pump is also an option — it's known for its slim, near-silent design.

Consistent, frequent pumping is one of the most effective ways to maintain or build supply — especially after returning to work. Willow Go® delivers hospital-grade suction in a wearable form, making it easier to pump on schedule throughout the day without disrupting your routine. Comfort also plays a direct role: discomfort during pumping can inhibit the let-down reflex and reduce output, which is why fit and flange sizing matter as much as suction strength.

Willow Go® and Willow 360™ both connect to the Willow app, which tracks session duration, milk volume, and pumping history over time. This makes it easy to spot trends in your supply, share data with a lactation consultant, or simply stay on top of daily output goals while managing a full work schedule.

Flange fit is one of the most important factors for both comfort and milk output. A flange that's too small can cause pain and restrict milk flow; one that's too large reduces suction efficiency. Willow offers a Breast Pump Sizing Kit ($24.99) to help find the right fit, plus universal Sizing Inserts for fine-tuning. The Willow Sizing Hub also walks through the full measurement process step by step.

Nipple anatomy matters more than most people realize when choosing a pump — and for moms with elastic nipples, flange tunnel depth is the most important fit factor. The Willow Go® is specifically designed with a significantly longer flange tunnel than other wearable pumps, which gives elastic nipples more room before the tunnel opening and helps prevent painful contact with the end of the tunnel during suction. Its smooth, uninterrupted inner flange surface also reduces friction and abrasion during long sessions. Because discomfort during pumping can inhibit the let-down reflex and reduce milk output, getting the right fit isn't just a comfort issue — it directly affects how much milk you express. Use the Willow Sizing Hub or the Breast Pump Sizing Kit ($24.99) to find your correct fit before your first session.

Ease of cleaning is one of the most underrated factors when choosing a pump — especially for moms pumping 4–8 times a day at work. Willow Go® and Willow 360™ are designed with minimal parts, making them faster to rinse and reassemble between sessions. Willow's SmartStash milk storage bags are self-sealing and disposable, which eliminates the need to transfer and clean bottles after every session. Replacement parts — including valves, flanges, and bags — are available directly on the Willow site so you're never scrambling to find compatible accessories.

In most cases, yes. Under the Affordable Care Act, health insurance plans are required to cover breast pump equipment as a preventive benefit — though coverage details vary by plan, including whether you receive a rental or purchase, and which brands qualify. Many plans cover the Willow Go® or Willow 360™ in full or with minimal out-of-pocket cost. See the full guide to getting a breast pump through insurance for step-by-step instructions on checking your benefits and submitting a claim.