Willow Go and accessories are available for purchase on Amazon. Click here to purchase!

The air vent/pouring spout is located at the very top of the assembled pump. So you can walk around, play with your baby, eat dinner, almost anything. Activities that involve leaning very far forward may cause a splash, especially if you have greater than 4 ounces in your container.

Pro Tip: If you experience splashing with the 5 ounce container due to activity or milk volume, try the 7 ounce, it is less likely to splash with activity.

We strongly recommend measuring yourself to determine your Willow size, as our sizing may be different than other pumps you’ve used. Use our sizing guide or check out our exhaustive guide on how to measure your flange size, which includes pro tips from Willow’s lactation consultants.

The Willow Go™ App is available for iOS 14 and higher, and Android OS 10 and higher (must support Bluetooth 5.1). The Willow Go™ App is not available for iOS or Android tablets.

Keep in mind, due to the significant number of different Android device models, Willow® cannot guarantee optimal performance of our pumps across all devices.

When alignment is off, performance suffers. As a new user, we suggest practicing your alignment in a mirror several times before your first session.

Simply center the flange or container (without the pump attached) over your nipple, so there’s no skin touching the top, bottom, or sides of the flange or container tunnel. When you place the flange inside the pump for your first session, you’ll have a better idea of alignment, which will improve as you gain experience. Most moms master alignment after a few sessions.

Yes! Willow Go is covered under a 12 month warranty from the purchase date, and pump accessories — all replaceable pump parts including but not limited to flanges, containers, diaphragms, duckbills, chargers and sizing inserts — are covered under a 90 day warranty.

Since breast pumps are single-user devices, use by more than one person, including purchasing second hand, will invalidate the warranty. Please keep your original proof of purchase from a authorized retailer as it is required to exercise your warranty.