Willow: Wearable Breast Pump – Willow Pump

Breast Milk Storage Bags with SmartStash™ Tracking

Breast Milk Storage Bags with SmartStash™ Tracking - Main image
$5.5 $17.99 In stock

Category: Milk Storage

Same high-quality bag, new top-quality tech. Our durable, leak-proof bags are now designed with a scannable, AI-enabled code to auto-input your milk bag information into your digital stash in the Willow app. However you choose to pour and store, you’ll finally have the control and peace of mind you crave.

Take the guesswork out of storing your stash.

Know exactly how much milk is in storage—down to the last ounce.

Use the camera in the Willow app to auto-add bag details to your digital stash

Always know how much milk you 
have stored in the freezer

Meet your pumping goals through this 
easy-to-use system

SmartStash™ Auto-Tracking

Each bag now has a scannable, AI-enabled code to auto-input milk bag information into your digital stash in the Willow app.

How long does breast milk last?

How to thaw & warm safely

How to store breast milk on-the-go

Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Please contact us for the refund processing timeframe before returning an item.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Eva T. ★★★★★

The scan codes actually worked perfectly with my phone, which saved me from writing dates on 15 bags after a late-night pumping session. The bags themselves are just as sturdy as before, so I didn't worry about leaks in the freezer. Already noticed the tracking app makes it way easier to rotate my o

James K. ★★★★★

The scan-and-log feature is a game-changer for me, it took seconds to get all my pumped milk into my stash while I was half-asleep. The bags themselves are genuinely leak-proof and held up perfectly to being frozen flat.

Charlotte Y. ★★★★★

I was skeptical about the whole AI tracking thing, but it genuinely saves me so much time—just scan the code and my stash is updated while I’m pumping. The bags themselves are super sturdy and sealed without a single leak, even after laying flat in the freezer.